Did Princess Charlotte sport Prince George's hand-me-downs in her birthday pics?

In honor of the Princess Charlotte's fourth birthday Thursday, Kensington Palace released brand new photos of the young royal. But there's something particularly familiar about one of them.

Charlotte, the fourth in line to the British throne, appears to be wearing a pair of sneakers that once belonged to her big brother, Prince George.

The palace released three photos of Charlotte, each taken by her mother, Catherine, Duchess of Cambridge, on the grounds of Kensington Palace and at the family's country home in Norfolk.

92 PHOTOS
Princess Charlotte of Cambridge over the years
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Princess Charlotte of Cambridge over the years
The Duke and Duchess of Cambridge are very pleased to share three new photographs of Princess Charlotte ahead of he… https://t.co/BOyDGurV9Q
LONDON, ENGLAND - DECEMBER 20: Princess Charlotte of Cambridge attends a Christmas lunch for the extended Royal Family at Buckingham Palace on December 20, 2017 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
Princess Charlotte waves on the steps of St George's Chapel in Windsor Castle after the wedding of Princess Eugenie and Jack Brooksbank, in Windsor, Britain October 12, 2018. Andrew Matthews/Pool via REUTERS
Flower Girls Princess Charlotte, left and Theodora Williams wave to the crowds following the wedding of Princess Eugenie of York and Jack Brooksbank in St George's Chapel, Windsor Castle, Windsor, Britain, October 12, 2018. Alastair Grant/Pool via REUTERS
HAMBURG, GERMANY - JULY 21: Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George of Cambridge and Princess Charlotte of Cambridge view helicopter models H145 and H135 before departing from Hamburg airport on the last day of their official visit to Poland and Germany on July 21, 2017 in Hamburg, Germany. (Photo by Chris Jackson/Getty Images)
HAMBURG, GERMANY - JULY 21: Princess Charlotte of Cambridge views helicopter models H145 and H135 before departing from Hamburg airport on the last day of their official visit to Poland and Germany on July 21, 2017 in Hamburg, Germany. (Photo by Karwai Tang/WireImage)
HAMBURG, GERMANY - JULY 21: Princess Charlotte of Cambridge and Catherine, Duchess of Cambridge view helicopter models H145 and H135 before departing from Hamburg airport on the last day of their official visit to Poland and Germany on July 21, 2017 in Hamburg, Germany. (Photo by Karwai Tang/WireImage)
HAMBURG, GERMANY - JULY 21: (NO UK SALES FOR 28 DAYS FROM CREATE DATE) Princess Charlotte of Cambridge depart from Hamburg airport on the last day of their official visit to Poland and Germany on July 21, 2017 in Hamburg, Germany. (Photo by Pool/Samir Hussein/WireImage)
HAMBURG, GERMANY - JULY 21: Princess Charlotte of Cambridge and Catherine, Duchess of Cambridge view helicopter models H145 and H135 before departing from Hamburg airport on the last day of their official visit to Poland and Germany on July 21, 2017 in Hamburg, Germany. (Photo by Karwai Tang/WireImage)
HAMBURG, GERMANY - JULY 21: Princess Charlotte of Cambridge and Catherine, Duchess of Cambridge view helicopter models H145 and H135 before departing from Hamburg airport on the last day of their official visit to Poland and Germany on July 21, 2017 in Hamburg, Germany. (Photo by Karwai Tang/WireImage)
HAMBURG, GERMANY - JULY 21: Princess Charlotte of Cambridge and Catherine, Duchess of Cambridge view helicopter models H145 and H135 before departing from Hamburg airport on the last day of their official visit to Poland and Germany on July 21, 2017 in Hamburg, Germany. (Photo by Franziska Krug/Getty Images)
HAMBURG, GERMANY - JULY 21: Princess Charlotte of Cambridge and Catherine, Duchess of Cambridge view helicopter models H145 and H135 before departing from Hamburg airport on the last day of their official visit to Poland and Germany on July 21, 2017 in Hamburg, Germany. (Photo by Franziska Krug/Getty Images)
HAMBURG, GERMANY - JULY 21: Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George of Cambridge and Princess Charlotte of Cambridge view helicopter models H145 and H135 before departing from Hamburg airport on the last day of their official visit to Poland and Germany on July 21, 2017 in Hamburg, Germany. (Photo by Chris Jackson/Getty Images)
HAMBURG, GERMANY - JULY 21: Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George of Cambridge and Princess Charlotte of Cambridge view helicopter models H145 and H135 before departing from Hamburg airport on the last day of their official visit to Poland and Germany on July 21, 2017 in Hamburg, Germany. (Photo by DMC/GC Images)
HAMBURG, GERMANY - JULY 21: Prince George, Princess Charlotte of Cambridge and Catherine, Duchess of Cambridge view helicopter models H145 and H135 before departing from Hamburg airport on the last day of their official visit to Poland and Germany on July 21, 2017 in Hamburg, Germany. (Photo by Karwai Tang/WireImage)
HAMBURG, GERMANY - JULY 21: Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George of Cambridge and Princess Charlotte of Cambridge view helicopter models H145 and H135 before departing from Hamburg airport on the last day of their official visit to Poland and Germany on July 21, 2017 in Hamburg, Germany. (Photo by Chris Jackson/Getty Images)
BERLIN, GERMANY - JULY 19: Princess Charlotte arrives at Berlin's Tegel Airport during an official visit to Poland and Germany on July 19, 2017 in Berlin, Germany. (Photo by Karwai Tang/WireImage)
BERLIN, GERMANY - JULY 19: Catherine, Duchess of Cambridge and Princess Charlotte of Cambridge arrive at Berlin Tegel Airport during an official visit to Poland and Germany on July 19, 2017 in Berlin, Germany. (Photo by Franziska Krug/Getty Images)
BERLIN, GERMANY - JULY 19: (NO UK SALES FOR 28 DAYS FROM CREATE DATE) Princess Charlotte of Cambridge arrives at Berlin military airport during an official visit to Poland and Germany on July 19, 2017 in Berlin, Germany. (Photo by Pool/Samir Hussein/WireImage)
BERLIN, GERMANY - JULY 19: Princess Charlotte of Cambridge arrive at Berlin Tegel Airport during an official visit to Poland and Germany on July 19, 2017 in Berlin, Germany. (Photo by Franziska Krug/Getty Images)
BERLIN, GERMANY - JULY 19: (NO UK SALES FOR 28 DAYS FROM CREATE DATE) Princess Charlotte of Cambridge arrives at Berlin military airport during an official visit to Poland and Germany on July 19, 2017 in Berlin, Germany. (Photo by Pool/Samir Hussein/WireImage)
BERLIN, GERMANY - JULY 19: Princess Charlotte arrives at Berlin's Tegel Airport during an official visit to Poland and Germany on July 19, 2017 in Berlin, Germany. (Photo by Karwai Tang/WireImage)
BERLIN, GERMANY - JULY 19: Princess Charlotte of Cambridge arrives at Berlin military airport during an official visit to Poland and Germany on July 19, 2017 in Berlin, Germany. (Photo by Samir Hussein/WireImage)
BERLIN, GERMANY - JULY 19: Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George of Cambridge, Princess Charlotte of Cambridge arrive at Berlin airport during an official visit to Poland and Germany on July 19, 2017 in Berlin, Germany. (Photo by DMC/GC Images)
WARSAW, POLAND - JULY 17: Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George of Cambridge, Princess Charlotte of Cambridge arrive at Warsaw airport during an official visit to Poland and Germany on July 17, 2017 in Warsaw, Poland. (Photo by Samir Hussein/Samir Hussein/WireImage)
WARSAW, POLAND - JULY 17: Catherine, Duchess of Cambridge, Princess Charlotte of Cambridge arrive at Warsaw airport during an official visit to Poland and Germany on July 17, 2017 in Warsaw, Poland. (Photo by Samir Hussein/Samir Hussein/WireImage)
LONDON, ENGLAND - JUNE 17: Catherine, Duchess of Cambridge, Princess Charlotte of Cambridge and Prince George of Cambridge stand on the balcony of Buckingham Palace during the Trooping the Colour parade on June 17, 2017 in London, England. (Photo by James Devaney/WireImage)
LONDON, ENGLAND - JUNE 17: Catherine, Duchess of Cambridge, Princess Charlotte of Cambridge, Prince George of Cambridge and Prince William, Duke of Cambridge look out from the balcony of Buckingham Palace during the annual Trooping the Colour parade on June 17, 2017 in London, England. (Photo by Anwar Hussein/WireImage)
WARSAW, POLAND - JULY 17: Catherine, Duchess of Cambridge carries Princess Charlotte of Cambridge as they arrive with Prince William, Duke of Cambridge and Prince George of Cambridge on day 1 of their official visit to Poland on July 17, 2017 in Warsaw, Poland. (Photo by Samir Hussein/Samir Hussein/WireImage)
LONDON, UNITED KINGDOM - JUNE 17: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Princess Charlotte of Cambridge, Prince George of Cambridge, Savannah Phillips and Isla Phillips watch the flypast from the balcony of Buckingham Palace during the annual Trooping the Colour Parade on June 17, 2017 in London, England. Trooping the Colour is a military parade to mark Queen Elizabeth II's official birthday and dates back to the time of Charles II in the 17th Century when the Colours of a Regiment were used as a rallying point in battle. (Photo by Max Mumby/Indigo/Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Princess Charlotte of Cambridge attends the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by UK Press Pool/UK Press via Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Catherine, Duchess of Cambridge waits for the bride with Princess Charlotte of Cambridge, bridesmaid at the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
NORFOLK, ENGLAND - APRIL 2017: In this undated handout image released by the Duke and Duchess of Cambridge, Princess Charlotte is pictured at home in April in Norfolk, England. The photograph was taken in April by The Duchess at their home in Norfolk to mark Princess' second birthday. (Photo by HRH The Duchess of Cambridge via Getty Images) NEWS EDITORIAL USE ONLY. NO COMMERCIAL USE (including any use in merchandising, advertising or any other non-editorial use including, for example, calendars, books and supplements). This photograph is provided to you strictly on condition that you will make no charge for the supply, release or publication of it and that these conditions and restrictions will apply (and that you will pass these on) to any organisation to whom you supply it. All other requests for use should be directed to the Press Office at Kensington Palace in writing. NOTE TO EDITORS: This handout photo may only be used in for editorial reporting purposes for the contemporaneous illustration of events, things or the people in the image or facts mentioned in the caption. Reuse of the picture may require further permission from the copyright holder.
ENGLEFIELD GREEN, ENGLAND - MAY 20: Prince George of Cambridge, paige boy and Princess Charlotte of Cambridge, bridesmaid attend the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
BUCKLEBURY, BERKSHIRE - DECEMBER 25: Catherine, Duchess of Cambridge and Princess Charlotte of Cambridge attend Church on Christmas Day on December 25, 2016 in Bucklebury, Berkshire. (Photo by Samir Hussein/Samir Hussein/WireImage)
ENGLEFIELD, ENGLAND - DECEMBER 25: Catherine, Duchess of Cambridge and Princess Charlotte of Cambridge attend a Christmas Day service at St. Marks Church on December 25, 2016 in Englefield, England. (Photo by Anwar Hussein/WireImage)
BUCKLEBURY, BERKSHIRE - DECEMBER 25: Princess Charlotte of Cambridge leaves following the service at St Mark's Church on Christmas Day on December 25, 2016 in Bucklebury, Berkshire. (Photo by Andrew Matthews - WPA Pool/Getty Images)

April 2016

Britain's Princess Charlotte, daughter of the Duke and Duchess of Cambridge, Prince William and his wife Catherine, poses for a photograph taken by her mother, at Anmer Hall in Norfolk.

Photo: HRH The Duchess of Cambridge

April 2016

Handout photo released by the Duke and Duchess of Cambridge of Princess Charlotte taken by the Duchess at Anmer Hall in Norfolk in April.

Photo: HRH The Duchess of Cambridge

April 2016

Handout photo released by the Duke and Duchess of Cambridge of Princess Charlotte taken by the Duchess at Anmer Hall in Norfolk in April.

Photo: HRH The Duchess of Cambridge

April 2016

Handout photo released by the Duke and Duchess of Cambridge of Princess Charlotte taken by the Duchess at Anmer Hall in Norfolk in April.

Photo: HRH The Duchess of Cambridge

March 2016​

The Duke of Cambridge cuddles Princess Charlotte, as the Duke, Duchess and their family enjoy a short private break skiing in the French Alps.

Photo: John Stillwell/PA Wire

March 2016​

The Duke and Duchess of Cambridge with their children, Princess Charlotte and Princess George, enjoy a short private break skiing in the French Alps.

Photo: John Stillwell/PA Wire

March 2016

The Duke and Duchess of Cambridge with their children, Prince George and Princess Charlotte, during a short private break skiing in the French Alps.

Photo: John Stillwell/PA Wire

October 2015

The Duke and Duchess of Cambridge with their two children, Prince George and Princess Charlotte, in a photograph taken late October at Kensington Palace in London.

Photo: Chris Jelf/PA Wire

November 2015

In a handout photo provided by HRH The Duchess of Cambridge, Princess Charlotte of Cambridge plays with a teddy as she is seen at Anmer Hall earlier this month taken by Catherine, Duchess of Cambridge in Sandringham, England.

Photo: HRH The Duchess of Cambridge via Getty Images

November 2015

In a handout photo provided by HRH The Duchess of Cambridge, Princess Charlotte of Cambridge is seen at Anmer Hall earlier this month taken by Catherine, Duchess of Cambridge in Sandringham, England.

Photo: HRH The Duchess of Cambridge via Getty Images 

July 2015

Princess Charlotte of Cambridge is pushed in her silver cross pram as she leaves the Church of St Mary Magdalene on the Sandringham Estate for the Christening of Princess Charlotte of Cambridge on July 5, 2015 in King's Lynn, England. 

Photo: Chris Jackson/Getty Images

July 2015

Catherine, Duchess of Cambridge and Princess Charlotte of Cambridge arrive at the Church of St Mary Magdalene on the Sandringham Estate for the Christening of Princess Charlotte of Cambridge on July 5, 2015 in King's Lynn, England.

Photo: Mary Turner - WPA Pool/Getty Images

July 2015

Catherine, Duchess of Cambridge, carries Princess Charlotte of Cambridge as they arrive at the Church of St Mary Magdalene on the Sandringham Estate for the Christening of Princess Charlotte of Cambridge on July 5, 2015 in King's Lynn, England.

Photo: Matt Dunham - WPA Pool /Getty Images

July 2015

Catherine, Duchess of Cambridge, Prince William, Duke of Cambridge, Princess Charlotte of Cambridge and Prince George of Cambridge talk to Queen Elizabeth II, Prince Phillip, Duke of Cambridge and Camilla, Duchess of Cornwall as they arrive at the Church of St Mary Magdalene on the Sandringham Estate for the Christening of Princess Charlotte of Cambridge on July 5, 2015 in King's Lynn, England.

Photo: Chris Jackson/Getty Images

July 2015

Princess Charlotte of Cambridge is pushed in her silver cross pram as she leaves the Church of St Mary Magdalene on the Sandringham Estate after her Christening on July 5, 2015 in King's Lynn, England.

Photo: Chris Jackson - WPA Pool/Getty Images

May 2015

Handout photo released by the Duke and Duchess of Cambridge of Prince George and Princess Charlotte. The photograph was taken by the Duchess in mid-May at Anmer Hall in Norfolk.

Photo: Duchess of Cambridge/PA Wire

May 2015

Handout photo released by the Duke and Duchess of Cambridge of Prince George and Princess Charlotte. The photograph was taken by the Duchess in mid-May at Anmer Hall in Norfolk.

Photo: Duchess of Cambridge/PA Wire

May 2015

Handout photo released by the Duke and Duchess of Cambridge of Prince George and Princess Charlotte. The photograph was taken by the Duchess in mid-May at Anmer Hall in Norfolk.

Photo: Duchess of Cambridge/PA Wire

May 2015

Handout photo released by the Duke and Duchess of Cambridge of Prince George and Princess Charlotte. The photograph was taken by the Duchess in mid-May at Anmer Hall in Norfolk.

Photo: Duchess of Cambridge/PA Wire

May 2015

The Princess of Cambridge in the arms of her mother the Duchess of Cambridge outside the Lindo Wing of St Mary's Hospital in London.

Photo: John Stillwell/PA Wire

May 2015

Britain's Prince William, Duke of Cambridge, and his wife Catherine, Duchess of Cambridge show their newly-born daughter, their second child, to the media outside the Lindo Wing at St Mary's Hospital in central London, on May 2, 2015.

Photo: LEON NEAL/AFP/Getty Images

May 2015

Britain's Prince William, Duke of Cambridge, and his wife Catherine, Duchess of Cambridge show their newly-born daughter, their second child, to the media outside the Lindo Wing at St Mary's Hospital in central London, on May 2, 2015.

Photo: LEON NEAL/AFP/Getty Images

May 2015

Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge leave The Lindo Wing of St Mary's Hospital with their newborn daughter on May 2, 2015 in London, England.

Photo: Ian Gavan/Getty Images

May 2015

Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge leave The Lindo Wing of St Mary's Hospital with their newborn daughter on May 2, 2015 in London, England.

Photo: Photo by Ian Gavan/Getty Images

May 2015

Britain's Catherine, Duchess of Cambridge holds her newly-born daughter, her second child with Britain's Prince William, Duke of Cambridge, as they show her to the media outside the Lindo Wing at St Mary's Hospital in central London, on May 2, 2015.

Photo: BEN STANSALL,BEN STANSALL/AFP/Getty Images

May 2015

Britain's Prince William, Duke of Cambridge, and his wife Catherine, Duchess of Cambridge show their newly-born daughter, their second child, to the media outside the Lindo Wing at St Mary's Hospital in central London, on May 2, 2015.

Photo: LEON NEAL/AFP/Getty Images

May 2015

Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge leave The Lindo Wing of St Mary's Hospital with their newborn daughter on May 2, 2015 in London, England.

Photo: Ian Gavan/Getty Images

May 2015

Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge leave St Mary's Hospital, Paddington, in the City of Westminster, London where the Duchess of Cambridge gave birth to a baby girl at 8.34am on 02/05/2015 weighing 8lbs 3oz.

Photo: Matt Crossick/ Empics Entertainment

May 2015

Britain's Prince William, Duke of Cambridge, carries his newly-born daughter, his second child with Catherine, Duchess of Cambridge, as they leave the Lindo Wing at St Mary's Hospital in central London, on May 2, 2015.

Photo: BEN STANSALL/AFP/Getty Images

May 2015

Britain's Prince William, Duke of Cambridge, helps his son Prince George of Cambridge out of a car as they return to the Lindo Wing at St Mary's Hospital in central London, on May 2, 2015 where his wife Catherine, Duchess of Cambridge, gave birth to their second child, a baby girl, earlier in the day. 

Photo: JUSTIN TALLIS/AFP/Getty Images

May 2015

Britain's Prince William, Duke of Cambridge, attempts to walk with his son Prince George of Cambridge as they return to the Lindo Wing at St Mary's Hospital in central London, on May 2, 2015 where his wife Catherine, Duchess of Cambridge, gave birth to their second child, a baby girl, earlier in the day.

Photo: JUSTIN TALLIS/AFP/Getty Images

May 2015

Britain's Prince William, Duke of Cambridge , carrying his son Prince George of Cambridge returns to the Lindo Wing at St Mary's Hospital in central London, on May 2, 2015 where his wife Catherine, Duchess of Cambridge, gave birth to their second child, a baby girl, earlier in the day.

Photo: BEN STANSALL/AFP/Getty Images

May 2015

Prince William, Duke of Cambridge and Prince George of Cambridge arrive at the Lindo Wing after Catherine, Duchess of Cambridge gave birth to a baby girl at St Mary's Hospital on May 2, 2015 in London, England.

Photo: Chris Jackson/Getty Images

May 2015

Prince William, Duke of Cambridge and Prince George of Cambridge outside St Mary's Hospital, Paddington.

Photo: Matt Crossick/ Empics Entertainment

May 2015

Britain's Prince William, Duke of Cambridge, waves as he leaves the Lindo Wing at St Mary's Hospital in central London, on May 2, 2015 where his wife Catherine, Duchess of Cambridge, gave birth to their second child, a baby girl, earlier in the day. The Duke is going to pick up his son, Prince George.

Photo: JUSTIN TALLIS/AFP/Getty Images

May 2015

Britain's Prince William, Duke of Cambridge, waves as he leaves the Lindo Wing at St Mary's Hospital in central London, on May 2, 2015 where his wife Catherine, Duchess of Cambridge, gave birth to their second child, a baby girl, earlier in the day. The Duchess of Cambridge was safely delivered of a daughter weighing 8lbs 3oz, Kensington Palace announced. The newly-born Princess of Cambridge is fourth in line to the British throne.

Photo: LEON NEAL/AFP/Getty Images

May 2015

Prince William, Duke of Cambridge outside St Mary's Hospital, Paddington, in the City of Westminster, London where the Duchess of Cambridge gave birth to a baby girl at 8.34am on 02/05/2015 weighing 8lbs 3oz.

Photo: Matt Crossick/ Empics Entertainment

May 2015

Prince William, Duke of Cambridge outside St Mary's Hospital, Paddington, in the City of Westminster, London where the Duchess of Cambridge gave birth to a baby girl at 8.34am on 02/05/2015 weighing 8lbs 3oz.

Photo: Matt Crossick/ Empics Entertainment

May 2015

Queen Elizabeth II sits in the back seat of a Range Rover as she leaves Kensington Palace, after meeting her great granddaughter Princess Charlotte of Cambridge who was born on Saturday at St Mary's Hospital in Paddington west London.

May 2015

LONDON, ENGLAND - MAY 03: Carole Middleton and Pippa Middleton arrive at Kensington Palace the day after the birth of The Duke And Duchess Of Cambridge's daughter at Kensington Palace on May 3, 2015 in London, England. (Photo by Danny E. Martindale/Getty Images)

May 2015

The Duchess of Cambridge's father Michael Middleton leaves Kensington Palace, London, after visiting his baby granddaughter.

May 2015

The Prince of Wales and Duchess of Cornwall leave Kensington Palace, London, after visiting the Duke and Duchess of Cambridge's baby princess for the first time.

May 2015

Charles, Prince of Wales leave Kensington Palace the day after the birth of The Duke And Duchess Of Cambridge's daughter at Kensington Palace on May 3, 2015 in London, England.

Photo: Danny E. Martindale/Getty Images

May 2015

Queen Elizabeth II during a visit to Richmond Castle to attend the amalgamation parade of The Queen's Royal Lancers and 9th/12th Royal Lancers. The Queen looks lovely in pink to celebrate her new great-granddaughter.

Photo: John Giles/PA Wire

May 2015

It's official: An easel is placed in the Forecourt of Buckingham Palace in London to announce the birth of a baby girl.

Photo: Steve Parsons/PA Wire

May 2015

An easel is placed in the Forecourt of Buckingham Palace in London to announce the birth of a baby girl.

Photo: Steve Parsons/PA Wire

May 2015

Thousands of well-wishers gather in front of Buckingham Palace before the announcement of the birth of Prince William, Duke of Cambridge and the Duchess of Cambridge's second child on May 2, 2015 in London, United Kingdom. The baby girl arrived at 8:34am Saturday and is the fourth in line to the throne and the Queen's fifth great-grandchild.

Photo: Chip Somodevilla/Getty Images

May 2015

Two-year-old Fleur Burrows waves the Union Jack flag, joining thousands of people in front of Buckingham Palace after the announcement of the birth of Prince William, Duke of Cambridge and the Duchess of Cambridge's second child outside Buckingham Palace on May 2, 2015 in London, United Kingdom. Catherine, Duchess of Cambridge delivered the baby girl at 8:34am Saturday and she is the fourth in line to the throne and the Queen's fifth great-grandchild.

Photo: Chip Somodevilla/Getty Images

May 2015

A message that reads 'It's a girl' revolves on an electronic screen at the top of the BT Tower in London on May 2, 2015 to herald the birth of Britain's Prince William, Duke of Cambridge, and Catherine, Duchess of Cambridge's second child.

Photo: ALESSANDRO ABBONIZIO/AFP/Getty Images

May 2015

An easel is placed in the forecourt of Buckingham Palace following the announcement that Catherine, Duchess of Cambridge has given birth to a baby girl at St Mary's Hospital on May 2, 2015 in London, England. The Duchess was safely delivered of a daughter at 8:34am this morning, weighing 8lbs 3 oz who will be fourth in line to the throne.

Photo: Steve Parsons - WPA Pool/Getty Images

May 2015

Town crier Tony Appleton makes an announcement of the birth of Catherine, Duchess of Cambridge and Prince William's second child, a daughter, outside the Lindo wing at St Mary's hospital in central London, on May 2, 2015. The Duchess of Cambridge was safely delivered of a daughter weighing 8lbs 3oz, Kensington Palace announced. AFP PHOTO / LEON NEAL

Photo: LEON NEAL/AFP/Getty Images

May 2015

A Town crier announces the birth of the Duke and Duchess of Cambridge's second child, a daughter on April 29, 2015 in London, England. The Duchess gave birth at 8.34am and the baby weighed 8lbs and 3oz.

Photo: Mike Marsland/WireImage

May 2015

Town crier Tony Appleton holds a scroll as he makes an announcement of the birth of Catherine, Duchess of Cambridge and Prince William's second child, a daughter, outside the Lindo wing at St Mary's hospital in central London, on May 2, 2015. The Duchess of Cambridge was safely delivered of a daughter weighing 8lbs 3oz, Kensington Palace announced.

Photo: LEON NEAL/AFP/Getty Images

May 2015

Royal fans celebrate outside the Lindo wing at St Mary's hospital in central London, on May 2, 2015 after the news is passed that Catherine, Duchess of Cambridge and Prince William's second child, a daughter, was born. The Duchess of Cambridge was safely delivered of a daughter weighing 8lbs 3oz, Kensington Palace announced.

Photo: LEON NEAL/AFP/Getty Images

VICTORIA, BC - OCTOBER 01: Catherine, Duchess of Cambridge and Princess Charlotte leave from Victoria Harbour to board a sea-plane on the final day of their Royal Tour of Canada on October 1, 2016 in Victoria, Canada. The Royal couple along with their Children Prince George of Cambridge and Princess Charlotte are visiting Canada as part of an eight day visit to the country taking in areas such as Bella Bella, Whitehorse and Kelowna (Photo by Andrew Milligan - Pool/Getty Images)
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In one of photos, Catherine sits on the grass in a light blue floral dress and a navy pair of canvas shoes. The laceless kicks look just like the ones spotted on her big brother, Prince George, at a charity event last June.

24 PHOTOS
The royal family at the Maserati Royal Charity Polo Trophy
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The royal family at the Maserati Royal Charity Polo Trophy

Catherine, Duchess of Cambridge, Prince George of Cambridge and Princess Charlotte of Cambridge attend the Maserati Royal Charity Polo Trophy at Beaufort Park on June 10, 2018 in Gloucester, England.

(Photo by Samir Hussein/Samir Hussein/WireImage)

Princess Charlotte of Cambridge, Catherine, Duchess of Cambridge and Prince George of Cambridge attend the Maserati Royal Charity Polo Trophy at Beaufort Park on June 10, 2018 in Gloucester, England.

(Photo by Karwai Tang/WireImage)

Prince George of Cambridge and Princess Charlotte of Cambridge attend the Maserati Royal Charity Polo Trophy at the Beaufort Polo Club on June 10, 2018 in Gloucester, England. (Photo by Max Mumby/Indigo/Getty Images)

Prince George of Cambridge and Princess Charlotte of Cambridge attend the Maserati Royal Charity Polo Trophy at the Beaufort Polo Club on June 10, 2018 in Gloucester, England.

(Photo by Max Mumby/Indigo/Getty Images)

Princess Charlotte of Cambridge at the Maserati Royal Charity Polo Trophy at Beaufort Park on June 10, 2018 in Gloucester, England.

(Photo by Karwai Tang/WireImage)

GLOUCESTER, ENGLAND - JUNE 10: Princess Charlotte of Cambridge playing during the Maserati Royal Charity Polo Trophy at Beaufort Park on June 10, 2018 in Gloucester, England. (Photo by Mark Cuthbert/UK Press via Getty Images)

Catherine, Duchess of Cambridge and Princess Charlotte of Cambridge attend the Maserati Royal Charity Polo Trophy at Beaufort Park on June 10, 2018 in Gloucester, England.

(Photo by Samir Hussein/WireImage)

Catherine, Duchess of Cambridge and Princess Charlotte of Cambridge attend the Maserati Royal Charity Polo Trophy at the Beaufort Polo Club on June 10, 2018 in Gloucester, England.

(Photo by Max Mumby/Indigo/Getty Images)

Prince George of Cambridge attends the Maserati Royal Charity Polo Trophy at the Beaufort Polo Club on June 10, 2018 in Gloucester, England.

(Photo by Max Mumby/Indigo/Getty Images)

Isla Phillips, Savannah Phillips, Prince George of Cambridge and Catherine, Duchess of Cambridge attend the Maserati Royal Charity Polo Trophy at the Beaufort Polo Club on June 10, 2018 in Gloucester, England.

(Photo by Max Mumby/Indigo/Getty Images)

Prince George of Cambridge attends the Maserati Royal Charity Polo Trophy at Beaufort Park on June 10, 2018 in Gloucester, England.

(Photo by Karwai Tang/WireImage)

Princess Charlotte of Cambridge attends the Maserati Royal Charity Polo Trophy at Beaufort Park on June 10, 2018 in Gloucester, England.

(Photo by Karwai Tang/WireImage)

Prince George of Cambridge plays with a Slinky toy as he attends the Maserati Royal Charity Polo Trophy at the Beaufort Polo Club on June 10, 2018 in Gloucester, England. (Photo by Max Mumby/Indigo/Getty Images)

Catherine, Duchess of Cambridge with Princess Charlotte of Cambridge and Prince George of Cambridge during the Maserati Royal Charity Polo Trophy at Beaufort Park on June 10, 2018 in Gloucester, England.

(Photo by Mark Cuthbert/UK Press via Getty Images)

Prince George of Cambridge, Catherine, Duchess of Cambridge and Princess Charlotte of Cambridge attend the Maserati Royal Charity Polo Trophy at the Beaufort Polo Club on June 10, 2018 in Gloucester, England.

(Photo by Max Mumby/Indigo/Getty Images)

Prince George of Cambridge and Princess Charlotte of Cambridge run together during the Maserati Royal Charity Polo Trophy at Beaufort Park on June 10, 2018 in Gloucester, England.

(Photo by Samir Hussein/WireImage)

Princess Charlotte of Cambridge attends the Maserati Royal Charity Polo Trophy at the Beaufort Polo Club on June 10, 2018 in Gloucester, England.

(Photo by Max Mumby/Indigo/Getty Images)

Catherine, Duchess of Cambridge, Prince George of Cambridge and Princess Charlotte of Cambridge attend the Maserati Royal Charity Polo Trophy at Beaufort Park on June 10, 2018 in Gloucester, England.

(Photo by Samir Hussein/Samir Hussein/WireImage)

Princess Charlotte of Cambridge and Prince George of Cambridge attend the Maserati Royal Charity Polo Trophy at Beaufort Park on June 10, 2018 in Gloucester, England.

(Photo by Karwai Tang/WireImage)

Catherine, Duchess of Cambridge, Prince George of Cambridge and Princess Charlotte of Cambridge attend the Maserati Royal Charity Polo Trophy at Beaufort Park on June 10, 2018 in Gloucester, England.

(Photo by Samir Hussein/WireImage)

Catherine, Duchess of Cambridge looks on as Prince George of Cambridge holds a toy gun the Maserati Royal Charity Polo Trophy at Beaufort Park on June 10, 2018 in Gloucester, England.

(Photo by Samir Hussein/WireImage)

Prince George of Cambridge and Princess Charlotte of Cambridge attend the Maserati Royal Charity Polo Trophy at Beaufort Park on June 10, 2018 in Gloucester, England.

(Photo by Samir Hussein/WireImage)

 Prince George of Cambridge and Catherine, Duchess of Cambridge attend the Maserati Royal Charity Polo Trophy at the Beaufort Polo Club on June 10, 2018 in Gloucester, England.

(Photo by Max Mumby/Indigo/Getty Images)

Prince George of Cambridge attends the Maserati Royal Charity Polo Trophy at the Beaufort Polo Club on June 10, 2018 in Gloucester, England.

(Photo by Max Mumby/Indigo/Getty Images)

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Photos of the two from the event show the pair running around a field, George wearing the navy shoes and Charlotte ... barefoot! Some fashion sites already are pointing out to where others can purchase the same pair of shoes. The sneaks are remarkably affordable ($35), prompting some to wonder whether Charlotte is wearing her brother's castoffs or if her mother purchased a new pair.

Of course, the duchess is known for recycling her own outfits — and for dressing her kids in hand-me-downs.

Last year, in photos showing Catherine cradling her then-newborn baby brother, Prince Louis, the young princess wears a navy blue cardigan that George donned in a 2016 portrait with the children's great-grandmother, Queen Elizabeth.

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Prince Louis in photos
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Prince Louis in photos
LONDON, UNITED KINGDOM - MAY 02: (NEWS EDITORIAL USE ONLY. NO COMMERCIAL USE) (No use in merchandising, advertising or any other non-editorial use including, for example, calendars, books and supplements). This photograph is provided to you strictly on condition that you will make no charge for the supply, release or publication of it and that these conditions and restrictions will apply (and that you will pass these on) to any organisation to whom you supply it. All other requests for use should be directed to the Press Office at Kensington Palace in writing. In this handout photo provided by the Duke and Duchess of Cambridge, Princess Charlotte is seen with her brother Prince Louis in a photo taken by the Duchess of Cambridge on Princess Charlotte's third birthday at Kensington Palace on May 2, 2018 in London, United Kingdom. (Photo by HRH Duchess of Cambridge via Getty Images)
LONDON, ENGLAND - JULY 09: (NO SALES) In this handout image released by the Duke and Duchess of Cambridge, Catherine, Duchess of Cambridge and Prince Louis pose for an Official Portrait following the christening of Prince Louis taken on the grounds of Clarence House in St James's Palace on July 9, 2018 in London, England. (Photo by PA/Matt Porteous/The Duke and Duchess of Cambridge via Getty Images) [NO USE AFTER JULY 29TH 2018. NO FEE APPLIES. OBLIGATORY BYLINE: MATT PORTEOUS/PA. FOR USE IN NEWS STORIES RELATING TO THE CHRISTENING OF PRINCE LOUIS OF CAMBRIDGE ONLY. NO USE IN CALENDARS, SOUVENIR ISSUES. NO MERHANDISING, PRINT SALES OR COMMERCIAL USE. MAGAZINE/SUPPLEMENT USE MUST BE APPROVED VIA PA AGENCY AND KENSINGTON PALACE. IMAGE MUST NOT BE CROPPED, MANIPULATED OR ALTERED IN ANY WAY. IMAGES MUST BE REMOVED FROM ANY DIGITAL ARCHIVE ON JULY 29TH 2018.] PAID COMMERCIAL IMAGE FOR PUBLICITY PURPOSES - FREE FOR EDITORIAL USE.
The Duke and Duchess of Cambridge, Prince George, Princess Charlotte and Prince Louis, following Prince Louis's christening. 📷 by Matt Holyoak at Clarence House.
The Duke and Duchess of Cambridge with Members of @TheRoyalFamily. This photograph was taken by Matt Holyoak in the Morning Room at Clarence House, following Prince Louis's baptism in the Chapel Royal, St. James’s Palace.
The Duke and Duchess of Cambridge have released four official photographs to mark the christening of Prince Louis on Monday 9th July. The photographs were taken by Matt Holyoak at Clarence House, following Prince Louis's baptism in the Chapel Royal, St. James’s Palace.
The Duchess of Cambridge and Prince Louis in the garden at Clarence House, following Prince Louis's christening. 📷 by Matt Holyoak.
LONDON, UNITED KINGDOM - APRIL 26: (NEWS EDITORIAL USE ONLY. NO COMMERCIAL USE) (No use in merchandising, advertising or any other non-editorial use including, for example, calendars, books and supplements). This photograph is provided to you strictly on condition that you will make no charge for the supply, release or publication of it and that these conditions and restrictions will apply (and that you will pass these on) to any organisation to whom you supply it. All other requests for use should be directed to the Press Office at Kensington Palace in writing. In this handout photo provided by the Duke and Duchess of Cambridge, Prince Louis is seen at Kensington Palace in a photo taken by the Duchess of Cambridge on April 26, 2018 in London, United Kingdom. (Photo by HRH Duchess of Cambridge via Getty Images)
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But that wasn't the only hand-me-down in the photo. Louis was wearing an all-white knit outfit that his sister wore years earlier when she was the newborn.

All of the photos were taken by the Duchess of Cambridge, who has been able to feature her photography skills every time one of her children celebrates a birthday. Just a few weeks ago, the photos released were in honor of Louis' first birthday.

Of course, all the children will soon have an opportunity to pass along all their hand-me-downs to another royal. Their uncle, Prince Harry, and his wife Meghan, Duchess of Sussex, are expecting their first child in just a matter of days.

25 PHOTOS
Most adorable photos of Prince William, Kate Middleton and family
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Most adorable photos of Prince William, Kate Middleton and family
08-06-2019 England The ceremony of the Trooping the Colour, marking the monarch's official birthday, in London. Prince William, Prince Louis, Prince George, Princess Charlotte, Catherine, Duchess of Cambridge ( PPE/Nieboer /Sipa USA)
Prince William holds Prince George as Catherine, Duchess of Cambridge, gives him a toy during a visit to the Bilby Enclosure at Sydney's Taronga Zoo April 20, 2014. The Prince and his wife Kate are undertaking a 19-day official visit to New Zealand and Australia with their son George. REUTERS/Chris Jackson/Pool (AUSTRALIA - Tags: ENTERTAINMENT ROYALS SOCIETY)
Britain's Prince William and Catherine, the Duchess of Cambridge, leave the chapel with their children Prince George, Princess Charlotte and Prince Louis after Prince Louis's christening in the Chapel Royal, St James's Palace, London, Britain, July 9, 2018. Dominic Lipinski/Pool via REUTERS
LONDON, ENGLAND - JULY 09: Princess Charlotte and Prince George hold the hands of their father, Prince William, Duke of Cambridge, as they arrive at the Chapel Royal, St James's Palace, London for the christening of their brother, Prince Louis, who is being carried by their mother, Catherine, Duchess of Cambridge on July 09, 2018 in London, England. (Photo by Dominic Lipinski - WPA Pool/Getty Images)
Britain's Prince William and Kate Middleton, Duchess of Cambridge pose for a photo with their newborn baby son Louis Arthur Charles as they leave the Lindo wing at St Mary's Hospital in London London, Monday, April 23, 2018.
Britain's Prince William, the Duke of Cambridge, his wife Princess Kate, the Duchess of Cambridge, Prince George and Princess Charlotte walk past helicopters at the airfield in Hamburg Finkenwerder, Germany, July 21, 2017. REUTERS/Christian Charisius/POOL
Britain's Prince William, the Duke of Cambridge, his wife Princess Kate, the Duchess of Cambridge, Prince George and Princess Charlotte walk at the airfield in Hamburg Finkenwerder, Germany, July 21, 2017. REUTERS/Christian Charisius/POOL
Prince William, the Duke of Cambridge (R), his wife Catherine, The Duchess of Cambridge (L), Prince George (2nd R) and Princess Charlotte arrive to attend the morning Christmas Day service at St Mark's Church in Englefield, near Bucklebury in southern England, Britain, December 25, 2016. REUTERS/Andrew Matthews/Pool
Britain's Prince William, Catherine, Duchess of Cambridge, Prince George and Princess Charlotte arrives to board a floatplane for their official departure from Canada in Victoria, British Columbia, Canada, October 1, 2016. REUTERS/Chris Wattie
Britain's Prince William (2nd R), Catherine, Duchess of Cambridge (2nd L), Prince George and Princess Charlotte (L) watch as a man inflates balloons at a children's party at Government House in Victoria, British Columbia, Canada, September 29, 2016. REUTERS/Chris Wattie
Britain's Prince William (2nd R), Catherine, Duchess of Cambridge (2nd L), Prince George and Princess Charlotte (L) watch as a man inflates balloons at a children's party at Government House in Victoria, British Columbia, Canada, September 29, 2016. REUTERS/Chris Wattie
Britain's Prince William (2nd L), Catherine, Duchess of Cambridge, Prince George (L) and Princess Charlotte (R) arrive at a children's party at Government House in Victoria, British Columbia, Canada, September 29, 2016. REUTERS/Chris Wattie
Catherine, Duchess of Cambridge holding Princess Charlotte, Prince George and Prince William, watch a flypast as they stand on the balcony of Buckingham Palace after the annual Trooping the Colour ceremony on Horseguards Parade in central London, Britain June 11, 2016. Trooping the Colour is a ceremony to honour Queen Elizabeth's official birthday. The Queen celebrates her 90th birthday this year. REUTERS/Toby Melville
Britain's Prince William, Catherine, Duchess of Cambridge, Prince George and Princess Charlotte arrive to board a floatplane for their official departure from Canada in Victoria, British Columbia, Canada, October 1, 2016. REUTERS/Chris Wattie
The Duke and Duchess of Cambridge walk past the crowds at the Church of St Mary Magdalene on the Sandringham Estate with their son Prince George and daughter Princess Charlotte, after her christening, on July 5th 2015. REUTERS/Mary Turner/Pool
Britain's Prince William and his wife Catherine, Duchess of Cambridge, appear with their baby daughter, Charlotte Elizabeth Diana, outside the Lindo Wing of St Mary's Hospital, in London, Britain May 2, 2015. The Duchess of Cambridge, gave birth to a girl on Saturday, the couple's second child and a sister to one-year-old Prince George. REUTERS/Cathal McNaughton
Britain's Prince William returns with his son George to the Lindo Wing of St Mary's Hospital, after the birth of his daughter in London, Britain May 2, 2015. Britain's Duchess of Cambridge, has given birth to a daughter, the couple's residence Kensington Palace announced on Saturday. REUTERS/Suzanne Plunkett
Britain's Catherine, Duchess of Cambridge, carries her son Prince George alongside her husband Prince William as they visit the Sensational Butterflies exhibition at the Natural History Museum in London, July 2, 2014. Prince George celebrates his first birthday on July 22. Picture taken July 2, 2014. REUTERS/John Stillwell/Pool (BRITAIN - Tags: ROYALS SOCIETY TPX IMAGES OF THE DAY) ATTENTION EDITORS - FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS
Britain's Catherine, the Duchess of Cambridge, holds her son Prince George as they prepare to board a plane with her husband Prince William (not pictured) to depart Canberra April 25, 2014. The Prince and his wife Kate are undertaking a 19-day official visit to New Zealand and Australia with their son Prince George. REUTERS/Phil Noble (AUSTRALIA - Tags: ROYALS ENTERTAINMENT POLITICS TPX IMAGES OF THE DAY)
Catherine, the Duchess of Cambridge, and her husband Britain's Prince William, watch as their son Prince George looks at an Australian animal called a Bilby, which has been named after the young Prince, during a visit to Sydney's Taronga Zoo April 20, 2014. The Prince and his wife Kate are undertaking a 19-day official visit to New Zealand and Australia with their son George. REUTERS/David Gray (AUSTRALIA - Tags: ROYALS ENTERTAINMENT TPX IMAGES OF THE DAY)
Catherine, Duchess of Cambridge, holds her son Prince George during a Plunket nurse and parents' group event at Government House in Wellington April 9, 2014. Plunket is a national not-for-profit organisation that provides care for children and families in New Zealand. Britain's Prince William and his wife Kate are undertaking a 19-day official visit to New Zealand and Australia with their son George. REUTERS/Marty Melville/Pool (NEW ZEALAND - Tags: ROYALS ENTERTAINMENT)
Catherine, the Duchess of Cambridge, holds her son Prince George after disembarking with her husband, Britain's Prince William, from their plane after arriving in Wellington April 7, 2014. The Prince and his wife Kate are undertaking a 19-day official visit to New Zealand and Australia with their son George. REUTERS/Phil Noble (NEW ZEALAND - Tags: ROYALS ENTERTAINMENT)
Britain's Prince William and his wife Catherine, Duchess of Cambridge appear with their baby son, outside the Lindo Wing of St Mary's Hospital, in central London July 23, 2013. Kate gave birth to the couple's first child, who is third in line to the British throne, on Monday afternoon, ending weeks of feverish anticipation about the arrival of the royal baby. REUTERS/Suzanne Plunkett (BRITAIN - Tags: SOCIETY ROYALS ENTERTAINMENT HEALTH)
Prince William, Catherine Duchess of Cambridge, Prince George, Princess Charlotte and Prince Louis during Trooping the Colour ceremony, marking the monarch's official birthday, in London. (Photo by DPPA/Sipa USA)
LONDON, ENGLAND - JUNE 08: Prince Louis, Prince George, Prince William, Duke of Cambridge appear on the balcony during Trooping The Colour, the Queen's annual birthday parade, on June 08, 2019 in London, England. (Photo by Samir Hussein/WireImage)
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