Duchess Kate wore a second dress on her wedding day -- here's what it looks like

Duchess Kate's Alexander McQueen wedding dress will go down as one of the most stunning in history. The iconic 2011 photograph of Kate in her white gown while looking back at sister Pippa Middleton as they both walked into Westminster Abby will remain engrained in our memories forever.

With its intricate lace detailing, extravagant train and V-neck bodice, the look designed by Sarah Burton led to brides wanting similar looks of their own.

Unbeknownst to most, however, Kate actually had a second gown for the big day -- and there are only a few photos of the Duchess wearing the gorgeous gown.

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The Royal Wedding: Prince William marries Kate Middleton
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The Royal Wedding: Prince William marries Kate Middleton
ATTENTION EDITORS - EMBARGO, RELEASABLE TUESDAY 29 MARCH AT 0001 GMT - THIS RESTRICTION APPLIES TO ALL MEDIA, INCLUDING WEBSITES Royal Demi Chef De Partie, Shaun Mason (L) and Royal Chef Mark Flanagan, Head of Kitchens at Buckingham Palace, work in the kitchens at Buckingham Palace, London on March 25, 2011, as preparations for the forthcoming wedding of Prince William and Kate Middleton are underway. The second-in-line to the throne marries his university sweetheart on April 29 at Westminster Abbey, in an event that has become a global media sensation ever since they announced their engagement last November. AFP PHOTO/WPA POOL/Nick Ansell (Photo credit should read Nick Ansell/AFP/Getty Images)
ATTENTION EDITORS - EMBARGO, RELEASABLE TUESDAY 29 MARCH AT 0001 GMT - THIS RESTRICTION APPLIES TO ALL MEDIA, INCLUDING WEBSITES Jennifer Scott, Assistant Curator of Paintings, looks up at her favourite painting as she walks past a Canaletto, Venice towards Santa Maria Della Salute (1723), in the Picture Gallery at Buckingham Palace, London, which will be one of the rooms used during the wedding reception of Prince William and Kate Middleton London on March 25, 2011. The second-in-line to the throne marries his university sweetheart on April 29 at Westminster Abbey, in an event that has become a global media sensation ever since they announced their engagement last November.AFP PHOTO/WPA POOL/Nick Ansell (Photo credit should read Nick Ansell/AFP/Getty Images)
ATTENTION EDITORS - EMBARGO, RELEASABLE TUESDAY 29 MARCH AT 0001 GMT - THIS RESTRICTION APPLIES TO ALL MEDIA, INCLUDING WEBSITES A chef of the Royal Household at Buckingham Palace, London, holds a tray of canapes akin to that which is usually served at receptions held at the palace, in the kitchens at Buckingham Palace, London on March 25, 2011, as preparetions for the forthcoming wedding of Prince William and Kate Middleton are underway. The second-in-line to the throne marries his university sweetheart on April 29 at Westminster Abbey, in an event that has become a global media sensation ever since they announced their engagement last November. AFP PHOTO/WPA POOL/Nick Ansell (Photo credit should read Nick Ansell/AFP/Getty Images)
UK - Wedding of Prince William & Kate Middleton - Buckingham Palace (Photo by Stephane Cardinale/Corbis via Getty Images)
(FILE PHOTO) In this composite image a comparison has been made between the Royal Wedding Cathedral aisle walks of Prince Charles, Prince of Wales and Lady Diana Spencer with that of Prince William and Catherine, Duchess of Cambridge.(Left Image) LONDON, UNITED KINGDOM - JULY 29: The Wedding Of Prince Charles To Lady Diana Spencer Held At St Paul's Cathedral In London. A General View Of The Prince And Princess Of Wales Walking Arm-in-arm Down The Aisle With Their Bridesmaids And Pageboys. (Photo by Tim Graham/Getty Images)(Right image) LONDON, ENGLAND - APRIL 29: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge leave Westminster Abbey following their marriage ceremony, on April 29, 2011 in London, England. The marriage of Prince William, the second in line to the British throne, to Catherine Middleton is being held in London today. The marriage of the second in line to the British throne is to be led by the Archbishop of Canterbury and will be attended by 1900 guests, including foreign Royal family members and heads of state. Thousands of well-wishers from around the world have also flocked to London to witness the spectacle and pageantry of the Royal Wedding. (Photo by Dave Thompson- WPA Pool/Getty Images)
FLECKNEY, UNITED KINGDOM - MARCH 24: Cake designer Fiona Cairns, who has been commissioned by Prince William and Kate Middleton to create a multi-tiered traditional fruit cake for their wedding, holds a tray of decorations for the cake March 24, 2011 in Fleckney, Leicestershire, England. The wedding will take place on April 29, 2011. (Photo by Rui Vieira - WPA Pool/Getty Images)
LONDON, ENGLAND - APRIL 28: Catherine Middleton arrives at The Goring Hotel after visiting Westminster Abbey on April 28, 2011 in London, England. With less than 24 hours to go final preparations for the wedding of Prince William and Catherine Middleton are in place. (Photo by Christopher Furlong/Getty Images)
ROME, ITALY - APRIL 28: The British Embassy in Rome presents a book of signatures to celebrate the royal wedding of Prince William and Kate Middleton on April 28, 2011 in Rome, Italy. The wedding of Britain's Prince William and his fiancee Kate Middleton will be celebrated at Westminster Abbey in London on April 29, 2011. (Photo by Giorgio Cosulich/Getty Images)
LONDON, ENGLAND - APRIL 29: Guests arrive at Westminster Abbey ahead of the Royal Wedding of Prince William to Catherine Middleton at Westminster Abbey on April 29, 2011 in London, England. The marriage of the second in line to the British throne is to be led by the Archbishop of Canterbury and will be attended by 1900 guests, including foreign Royal family members and heads of state. Thousands of well-wishers from around the world have also flocked to London to witness the spectacle and pageantry of the Royal Wedding. (Photo by Dominic Lipinski - WPA Pool/Getty Images)
LONDON, ENGLAND - APRIL 29: Servicemen in Full Dress arrive to attend the Royal Wedding of Prince William to Catherine Middleton at Westminster Abbey on April 29, 2011 in London, England. The marriage of the second in line to the British throne is to be led by the Archbishop of Canterbury and will be attended by 1900 guests, including foreign Royal family members and heads of state. Thousands of well-wishers from around the world have also flocked to London to witness the spectacle and pageantry of the Royal Wedding. (Photo by Dan Kitwood/Getty Images)
LONDON, ENGLAND - APRIL 29: Crowds pose for a portrait during the Royal Wedding of Prince William to Catherine Middleton on April 29, 2011 in London, England. The marriage of the second in line to the British throne was led by the Archbishop of Canterbury and was attended by 1900 guests, including foreign Royal family members and heads of state. Thousands of well-wishers from around the world have also flocked to London to witness the spectacle and pageantry of the Royal Wedding. (Photo by Dave Hogan/GP) (Photo by Dave Hogan/GP/Getty Images)
LONDON, ENGLAND - APRIL 29: (Centre) David Beckham and Victoria Beckham arrive to attend the Royal Wedding of Prince William to Catherine Middleton on April 29, 2011 in London, England. The marriage of the second in line to the British throne was led by the Archbishop of Canterbury and was attended by 1900 guests, including foreign Royal family members and heads of state. Thousands of well-wishers from around the world have also flocked to London to witness the spectacle and pageantry of the Royal Wedding. (Photo by Georges De Keerle/GP/Getty Images)
LONDON, ENGLAND - APRIL 29: Guests arrive to attend the Royal Wedding of Prince William to Catherine Middleton on April 29, 2011 in London, England. The marriage of the second in line to the British throne was led by the Archbishop of Canterbury and was attended by 1900 guests, including foreign Royal family members and heads of state. Thousands of well-wishers from around the world have also flocked to London to witness the spectacle and pageantry of the Royal Wedding. (Photo by Georges De Keerle/GP/Getty Images)
Queen Sofia of Spain departs Claridge's hotel to attend the wedding of Prince William and Miss Catherine Middleton on April 29, 2011 in London, England.
A military marching band perform as they march along the processional route on the day of the wedding of Britain's Prince William and Kate Middleton, on April 29, 2011, in central London. AFP PHOTO / PIERRE-PHILIPPE MARCOU (Photo credit should read PIERRE-PHILIPPE MARCOU/AFP/Getty Images)
LONDON, ENGLAND - APRIL 29: Tara Palmer-Tomkinson arrives to attend the Royal Wedding of Prince William to Catherine Middleton at Westminster Abbey on April 29, 2011 in London, England. The marriage of the second in line to the British throne is to be led by the Archbishop of Canterbury and will be attended by 1900 guests, including foreign Royal family members and heads of state. Thousands of well-wishers from around the world have also flocked to London to witness the spectacle and pageantry of the Royal Wedding. (Photo by Mike Marsland/WireImage)
LONDON, ENGLAND - APRIL 29: Crowds pose for a portrait during the Royal Wedding of Prince William to Catherine Middleton on April 29, 2011 in London, England. The marriage of the second in line to the British throne was led by the Archbishop of Canterbury and was attended by 1900 guests, including foreign Royal family members and heads of state. Thousands of well-wishers from around the world have also flocked to London to witness the spectacle and pageantry of the Royal Wedding. (Photo by Dave Hogan/GP) (Photo by Dave Hogan/GP/Getty Images)
A military division march in front of Westminster Abbey in London on the day of the wedding of Britain's Prince William and Kate Middleton, on April 29, 2011. AFP PHOTO / ODD ANDERSEN (Photo credit should read ODD ANDERSEN/AFP/Getty Images)
LONDON, ENGLAND - APRIL 29: Prince William and Catherine Middleton at the altar during their wedding service in Westminster Abbey on April 29, 2011 in London, England. The marriage of the second in line to the British throne is being led by the Archbishop of Canterbury and will be attended by 1900 guests, including foreign Royal family members and heads of state. Thousands of well-wishers from around the world have also flocked to London to witness the spectacle and pageantry of the Royal Wedding. (Photo by Anthony Devlin - WPA Pool/Getty Images)
LONDON, ENGLAND - APRIL 29: Catherine Middleton waves to the crowds as she arrives to attend her Royal Wedding to Prince William on April 29, 2011 in London, England. The marriage of the second in line to the British throne was led by the Archbishop of Canterbury and was attended by 1900 guests, including foreign Royal family members and heads of state. Thousands of well-wishers from around the world have also flocked to London to witness the spectacle and pageantry of the Royal Wedding. (Photo by Georges De Keerle/GP/Getty Images)
LONDON, ENGLAND - APRIL 29: Prince William sings beside his bride Catherine Middleton during their wedding at Westminster Abbey on April 29, 2011 in London, England. The marriage of Prince William, the second in line to the British throne, to Catherine Middleton is being held in London today. The marriage of the second in line to the British throne is to be led by the Archbishop of Canterbury and will be attended by 1900 guests, including foreign Royal family members and heads of state. Thousands of well-wishers from around the world have also flocked to London to witness the spectacle and pageantry of the Royal Wedding. (Photo by Andrew Milligan - WPA Pool/Getty Images)
LONDON, ENGLAND - APRIL 29: Prince William and his new bride Catherine Middleton stand in front of the altar during the service on April 29, 2011 in London, England. The marriage of Prince William, the second in line to the British throne, to Catherine Middleton is being held in London today. The marriage of the second in line to the British throne is to be led by the Archbishop of Canterbury and will be attended by 1900 guests, including foreign Royal family members and heads of state. Thousands of well-wishers from around the world have also flocked to London to witness the spectacle and pageantry of the Royal Wedding. (Photo by Dominic Lipinski - WPA Pool/Getty Images)
LONDON, ENGLAND - APRIL 29: Prince William, Duke of Cambridge and his new bride Catherine, Duchess of Cambridge walk down the aisle at the close of their wedding ceremony at Westminster Abbey on April 29, 2011 in London, England. The marriage of Prince William, the second in line to the British throne, to Catherine Middleton is being held in London today. The Archbishop of Canterbury conducted the service which was attended by 1900 guests, including foreign Royal family members and heads of state. Thousands of well-wishers from around the world have also flocked to London to witness the spectacle and pageantry of the Royal Wedding and street parties are being held throughout the UK. (Photo by Richard Pohle-WPA Pool/Getty Images)
LONDON, ENGLAND - APRIL 29: (L-R) Michael Middleton, Carole Middleton, Prince Charles, The Prince of Wales with Camilla, Duchess of Cornwall and Eliza Lopes, Lady Louise Windsor, Grace van Cutsem, Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge and Margarita Armstrong-Jones, page boys Tom Pettifer and William Lowther-Pinkerton with Queen Elizabeth II, Prince Philip, the Duke of Edinburgh, Pippa Middleton, Prince Harry and James Middleton greet well-wishers from the balcony at Buckingham Palace on April 29, 2011 in London, England. The marriage of the second in line to the British throne was led by the Archbishop of Canterbury and was attended by 1900 guests, including foreign Royal family members and heads of state. Thousands of well-wishers from around the world have also flocked to London to witness the spectacle and pageantry of the Royal Wedding. (Photo by Peter Macdiarmid/Getty Images)
Prince William and his wife Kate Middleton, Duchess of Cambridge, kiss on the balcony of Buckingham Palace in London, following their wedding on April 29, 2011. AFP PHOTO / WPA POOL / JOHN STILLWELL (Photo credit should read JOHN STILLWELL/AFP/Getty Images)
LONDON, ENGLAND - APRIL 29: Catherine Middleton and her father Michael Middleton arrive to attend the Royal Wedding of Prince William to Catherine Middleton at Westminster Abbey on April 29, 2011 in London, England. The marriage of the second in line to the British throne is to be led by the Archbishop of Canterbury and will be attended by 1900 guests, including foreign Royal family members and heads of state. Thousands of well-wishers from around the world have also flocked to London to witness the spectacle and pageantry of the Royal Wedding. (Photo by Warren Little/Getty Images)
Kate Middleton, accompanied by her father Michael Middleton arrives at the West Door of Westminster Abbey in London for her wedding to Britain's Prince William, on April 29, 2011. AFP PHOTO / BEN STANSALL (Photo credit should read BEN STANSALL/AFP/Getty Images)
Britain's Prince Charles travels to Westminster Abbey in London for the wedding of Britain's Prince William and Kate Middleton, on April 29, 2011. AFP PHOTO / MARTIN BUREAU (Photo credit should read MARTIN BUREAU/AFP/Getty Images)
Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge depart after their Wedding at Westminster Abbey on April 29, 2011 in London, England.
Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge greet wellwishers from the balcony next to (L-R) Lady Louise Windsor, Grace Van Cutsem at Buckingham Palace on April 29, 2011 in London, England. (Photo by George Pimentel/WireImage)
Sister of the Bride and Maid of Honour Pippa Middleton depart the Royal Wedding of Prince William to Catherine Middleton at Westminster Abbey on April 29, 2011 in London, England. The marriage of the second in line to the British throne is to be led by the Archbishop of Canterbury and will be attended by 1900 guests, including foreign Royal family members and heads of state. Thousands of well-wishers from around the world have also flocked to London to witness the spectacle and pageantry of the Royal Wedding. (Photo by Ferdaus Shamim/WireImage)
(L-R) Michael Middleton, Carole Middleton, Eliza Lopes, Prince Charles, Prince of Wales, Camilla, Duchess of Cornwall and Lady Louise Windsor stand on balcony of Buckingham Palace following the wedding of TRH Prince William, Duke of Cambridge and Catherine, Duchesss of Cambridge on April 29, 2011 in London, England. (Photo by George Pimentel/WireImage)
Kate Middleton, left, arrives for her wedding with Britain's Prince William as her maid of honor Pippa Middleton holds the train at Westminster Abbey in London. (Photo by Brooks Kraft LLC/Corbis via Getty Images)
UK - Royal Wedding of Prince William and Kate (Catherine) Middleton - Kate Middleton waves to the crowd along the Mall for the trip to Westminster Abbey 29th April 2011 London UK (Photo by Paul Cunningham/Corbis via Getty Images)
UK - Royal Wedding of Prince William and Kate (Catherine) Middleton - return along the Mall in an open Landau to Buckingham Palace 29th April 2011 London UK (Photo by Paul Cunningham/Corbis via Getty Images)
Britain's Prince William and his wife Catherine, Duchess of Cambridge, leave after their wedding in Westminster Abbey in the 1902 State Landau along the Procession Route, in central London. (Photo by Brooks Kraft LLC/Corbis via Getty Images)
Princess Anne arrives at Westminster Abbey for the wedding ceremony of Britain's Prince William and his wife Catherine, Duchess of Cambridge, in central London. (Photo by Brooks Kraft LLC/Corbis via Getty Images)
Camilla, Duchess of Cornwall, departs Westminster Abbey after the service at the Royal Wedding in London. (Photo by Brooks Kraft LLC/Corbis via Getty Images)
HRH Prince William and Princess Catherine in the procession after their Royal wedding at Westminster Abbey . (Photo by rune hellestad/Corbis via Getty Images)
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Once the ceremony was over, the bride switched into an ivory satin dress also designed by Sarah Burton for the private reception hosted at Buckingham Palace. The fit-and-flare strapless gown featured a sweetheart neckline, a stunning crystal-encrusted belt and a bolero to cover up her shoulders.

According to British publication Express, the royal switched looks for an incredibly practical reason -- she wanted to feel more comfortable at the reception! By the looks of the photos, her second Alexander McQueen gown was definitely easier to maneuver around in -- perfect for all the dancing she probably did with her hubby Prince William!

Earlier this year, Pippa and Kate switched roles as the youngest Middleton daughter tied the knot. The lifestyle guru looked stunning in a Giles Deacon gown while Kate, who was maid of honor, dazzled in a blush Alexander McQueen dress.

To see her second wedding gown, watch the video above!

RELATED: Pippa Middleton's dreamy wedding:

56 PHOTOS
Pippa Middleton's wedding day
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Pippa Middleton's wedding day
ENGLEFIELD GREEN, ENGLAND - MAY 20: Pippa Middleton arrives for her wedding to James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Justin Tallis - WPA Pool)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Bride Pippa Middleton and her new husband James Matthews seen leaving St Mark's Church after their Wedding Ceremony on May 20, 2017 in Englefield, England. (Photo by Neil Mockford/GC Images)
Britain's Catherine, Duchess of Cambridge, (back row R) watches as her sister Pippa Middleton (C) walks with her new husband James Matthews (L), following their wedding at St Mark's Church in Englefield, west of London, on May 20, 2017. After turning heads at her sister Kate's wedding to Prince William, Pippa Middleton graduated from bridesmaid to bride on Saturday at a star-studded wedding in an English country church. The 33-year-old married financier James Matthews, 41, at a ceremony attended by the royal couple and tennis star Roger Federer, wearing a couture dress by British designer Giles Deacon. / AFP PHOTO / POOL / Justin TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Catherine, Duchess of Cambridge and Princess Charlotte of Cambridge, bridesmaid leave 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)
ENGLEFIELD, ENGLAND - MAY 20: Catherine, Duchess of Cambridge, right, walks with the flower boys and girls after the wedding of Pippa Middleton and James Matthews at St Mark's Churchon May 20, 2017 in in Englefield, England. Middleton, the sister of Catherine, Duchess of Cambridge married hedge fund manager James Matthews in a ceremony Saturday where her niece and nephew Prince George and Princess Charlotte was in the wedding party, along with sister Kate and princes Harry and William. (AP Photo/Kirsty Wigglesworth, Pool)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Pippa Middleton (R) is escorted by her father Michael Middleton as she arrives for her wedding to James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Justin Tallis - WPA Pool)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Pippa Middleton (R) is escorted by her father Michael Middleton as she arrives for her wedding to James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Justin Tallis - WPA Pool)
Pippa Middleton (centre R) kisses her new husband James Matthews, following their wedding ceremony at St Mark's Church in Englefield, west of London, on May 20, 2017, as the bridesmaids, including Britain's princess Charlotte (L) and pageboys, including Britain's prince George (2R), walk ahead. After turning heads at her sister Kate's wedding to Prince William, Pippa Middleton graduated from bridesmaid to bride on Saturday at a star-studded wedding in an English country church. The 33-year-old married financier James Matthews, 41, at a ceremony attended by the royal couple and tennis star Roger Federer, wearing a couture dress by British designer Giles Deacon. / AFP PHOTO / POOL / Justin TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Pippa Middleton (R) is escorted by her father Michael Middleton as she arrives for her wedding to James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Justin Tallis - WPA Pool)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Pippa Middleton (R) is escorted by her father Michael Middleton as she arrives for her wedding to James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Justin Tallis - WPA Pool)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Pippa Matthews and James Matthews exit the church after their wedding ceremony at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
ENGLEFIELD, ENGLAND - MAY 20: Pippa Middleton arrives for her wedding to James Matthews at St Mark's Church on May 20, 2017 in Englefield, England. Middleton, the sister of Catherine, Duchess of Cambridge is to marry hedge fund manager James Matthews in a ceremony Saturday where her niece and nephew Prince George and Princess Charlotte are in the wedding party, along with sister Kate and princes Harry and William. (Photo by Kirsty Wigglesworth - Pool/Getty Images)
ENGLEFIELD, ENGLAND - MAY 20: Donna Air, left, arrives at St Mark's Church ahead of the wedding of Pippa Middleton and James Matthews on May 20, 2017 in Englefield, England. Middleton, the sister of Catherine, Duchess of Cambridge is to marry hedge fund manager James Matthews in a ceremony Saturday where her niece and nephew Prince George and Princess Charlotte are in the wedding party, along with sister Kate and princes Harry and William. (Photo by Kirsty Wigglesworth - Pool/Getty Images)
Spencer Matthews, center, stands at the entrance of St Mark's Church in for the wedding of Pippa Middleton and his brother James Matthews on May 20, 2017 in Englefield, England. Middleton, the sister of Catherine, Duchess of Cambridge is to marry hedge fund manager James Matthews in a ceremony Saturday where her niece and nephew Prince George and Princess Charlotte are in the wedding party, along with sister Kate and princes Harry and William. (Photo by Kirsty Wigglesworth - Pool/Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Britain's Prince Harry (R) and Britain's Prince William, Duke of Cambridge attend the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Justin Tallis - WPA Pool)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Prince George of Cambridge leaves after 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)
Pippa Middleton (R) poses for a photograph with her new husband James Matthews, following their wedding ceremony at St Mark's Church in Englefield, west of London, on May 20, 2017. After turning heads at her sister Kate's wedding to Prince William, Pippa Middleton graduated from bridesmaid to bride on Saturday at a star-studded wedding in an English country church. The 33-year-old married financier James Matthews, 41, at a ceremony attended by the royal couple and tennis star Roger Federer, wearing a couture dress by British designer Giles Deacon. / AFP PHOTO / POOL AND AFP PHOTO / Justin TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Swiss tennis player Roger Federer (L) and his wife Mirka attend the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Justin Tallis - WPA Pool)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Gary Goldsmith (L), uncle of the bride attends the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Justin Tallis - WPA Pool)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Swiss tennis player Roger Federer (L) and his wife Mirka attend the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Justin Tallis - WPA Pool)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Donna Air (L) attends the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Justin Tallis - WPA Pool)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Guests seen arriving at St Mark's Church for the Wedding of Pippa Middleton and James Matthews on May 20, 2017 in Englefield, England. (Photo by Neil P. Mockford/GC Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Guests seen arriving at St Mark's Church for the Wedding of Pippa Middleton and James Matthews on May 20, 2017 in Englefield, England. (Photo by Neil P. Mockford/GC Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Catherine, Duchess of Cambridge and Princess Charlotte of Cambridge, bridesmaid leave 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)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Bride Pippa Middleton and her father Michael Middleton seen arriving at St Mark's Church for her Wedding to James Matthews on May 20, 2017 in Englefield, England. (Photo by Neil P. Mockford/GC Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Pippa Middleton and Michael Middleton seen arriving at St Mark's Church for the Wedding of Pippa Middleton and James Matthews on May 20, 2017 in Englefield, England. (Photo by Neil P. Mockford/GC Images)
Britain's Prince George waves as he leaves in a car after attending the wedding of his aunt, Pippa Middleton, to James Matthews at St Mark's Church in Englefield, west of London, on May 20, 2017. After turning heads at her sister Kate's wedding to Prince William, Pippa Middleton graduated from bridesmaid to bride on Saturday at a star-studded wedding in an English country church. The 33-year-old married financier James Matthews, 41, at a ceremony attended by the royal couple and tennis star Roger Federer, wearing a couture dress by British designer Giles Deacon. / AFP PHOTO / POOL / Justin TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Bride Pippa Middleton and her father Michael Middleton seen arriving at St Mark's Church for her Wedding to James Matthews on May 20, 2017 in Englefield, England. (Photo by Neil P. Mockford/GC Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Catherine, Duchess of Cambridge arrives with her children Prince George of Cambridge, Pageboy and Princess Charlotte of Cambridge, bridesmaid, along with other Pageboys Casimir Tatos, Edward Sebire, William Ward and other bridesmaids Countess Philippa Hoyos, Lily French and Avia Horner 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)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Pippa Middleton and her father Michael Middleton arrive 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)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Pippa Middleton and her father Michael Middleton arrive 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)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Catherine, Duchess of Cambridge waits for the bride with her children Prince George of Cambridge, page boy and 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)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Princess Charlotte of Cambridge, bridesmaid and Catherine, Duchess of Cambridge arrive for 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)
Michael Middleton (L), walks with his daughter Pippa Middleton, as they arrive for her wedding to James Matthews at St Mark's Church in Englefield, west of London, on May 20, 2017. Pippa Middleton hit the headlines with a figure-hugging outfit at her sister Kate's wedding to Prince William but now the world-famous bridesmaid is becoming a bride herself. Once again, all eyes will be on her dress as the 33-year-old marries financier James Matthews on Saturday at a lavish society wedding where William and Kate's children will play starring roles. / AFP PHOTO / POOL / Justin TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Catherine, Duchess of Cambridge leads the page boys and flower girls as they arrive for 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)
Britain's Catherine, Duchess of Cambridge (L) stands with her daughter Britain's princess Charlotte, and the other bridesmaids and pageboys, as they await Pippa Middleton to arrive for her wedding to James Matthews at St Mark's Church in Englefield, west of London, on May 20, 2017. Pippa Middleton hit the headlines with a figure-hugging outfit at her sister Kate's wedding to Prince William but now the world-famous bridesmaid is becoming a bride herself. Once again, all eyes will be on her dress as the 33-year-old marries financier James Matthews on Saturday at a lavish society wedding where William and Kate's children will play starring roles. / AFP PHOTO / POOL AND AFP PHOTO / Justin TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Princess Charlotte of Cambridge, bridesmaid attends 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)
Nanny to Prince George and Princess Charlotte of Cambridge, Maria Borrallo, walks to the church ahead of the wedding of Pippa Middleton and James Matthews at St Mark's Church in Englefield, west of London, on May 20, 2017. Pippa Middleton hit the headlines with a figure-hugging outfit at her sister Kate's wedding to Prince William but now the world-famous bridesmaid is becoming a bride herself. Once again, all eyes will be on her dress as the 33-year-old marries financier James Matthews on Saturday at a lavish society wedding where William and Kate's children will play starring roles. / AFP PHOTO / POOL / Justin TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
Britain's prince George (L), a pageboy, Britain's princess Charlotte, a bridesmaid, stand with their nanny Maria Borrallo, as they attend the wedding of their aunt Pippa Middleton to James Matthews at St Mark's Church in Englefield, west of London, on May 20, 2017. Pippa Middleton hit the headlines with a figure-hugging outfit at her sister Kate's wedding to Prince William but now the world-famous bridesmaid is becoming a bride herself. Once again, all eyes will be on her dress as the 33-year-old marries financier James Matthews on Saturday at a lavish society wedding where William and Kate's children will play starring roles. / AFP PHOTO / POOL AND AFP PHOTO / Justin TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: James Middleton greets Donna Air as she attends 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)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Spencer Matthews (C) brother of James Matthews attends 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)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Spencer Matthews brother of James Matthews, greets Donna Air as she attends 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)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Spencer Matthews brother of James Matthews (L) as Donna Air is welcomed to 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)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Princess Beatrice (L) attends 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)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Prince William, Duke of Cambridge and Prince Harry (R) 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)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Prince William, Duke of Cambridge and Prince Harry (R) 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)
Pippa Middleton, (R) arrives with her father Michael Middleton, in a 1951 Jaguar Mk V car, for her wedding to James Matthews at St Mark's Church in Englefield, west of London, on May 20, 2017. Pippa Middleton hit the headlines with a figure-hugging outfit at her sister Kate's wedding to Prince William but now the world-famous bridesmaid is becoming a bride herself. Once again, all eyes will be on her dress as the 33-year-old marries financier James Matthews on Saturday at a lavish society wedding where William and Kate's children will play starring roles. / AFP PHOTO / POOL / Justin TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
Gary Goldsmith and daughter Tallulah arrive ahead of the wedding of Pippa Middleton to her millionaire groom James Matthews, dubbed the society wedding of the year at, St Mark's church in Englefield, Berkshire.
Pippa Middleton and James Matthews wave as they drive a Jaguar E-Type after their wedding, dubbed the society wedding of the year, at St Mark's church in Englefield, Berkshire.
Pippa Middleton and James Matthews wave as they drive a Jaguar E-Type after their wedding, dubbed the society wedding of the year, at St Mark's church in Englefield, Berkshire.
Pippa Middleton and her husband James Matthews leave St Mark's church in Englefield, Berkshire, following their wedding.
Pippa Middleton and her husband James Matthews leave St Mark's church in Englefield, Berkshire, following their wedding.
Prince George and Princess Charlotte at the wedding of the Duchess of Cambridge's sister Pippa Middleton to her millionaire groom James Matthews, dubbed the society wedding of the year at, St Mark's church in Englefield, Berkshire.
Guests arrive ahead of the wedding of the Duchess of Cambridge's sister Pippa Middleton to her millionaire groom James Matthews, dubbed the society wedding of the year at, St Mark's church in Englefield, Berkshire.
Guests arrive ahead of the wedding of the Duchess of Cambridge's sister Pippa Middleton to her millionaire groom James Matthews, dubbed the society wedding of the year at, St Mark's church in Englefield, Berkshire.
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