Uncle Harry's protege: Prince William thinks Princess Charlotte is going to be ‘trouble'

We knew it! Prince William validated our suspicions that Princess Charlotte is one classy sassy lady and revealed she’s already quite the handful at the age of 2.

Yesterday, during a visit to the Aintree University Hospital in Liverpool, England, William discussed what life is like in the royal household and confessed Charlotte, not Prince George, is the one he needs to keep an eye on. “George rules the roost but Charlotte isn’t far behind. I think she’s going to be trouble when she’s older. All fathers say that to me—watch out for the little girls,” he said.

55 PHOTOS
Royal baby Princess Charlotte of Cambridge
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Royal baby Princess Charlotte of Cambridge

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

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From our vantage point, Charlotte appears to be adjusting to life as a princess perfectly (natch). Her very first curtsy made a bigger splash than Queen Elizabeth II’s Diamond Jubilee (OK, maybe we’re exaggerating a little), so it’s no surprise Prince William is erring on the side of caution.

Sugar and spice and everything nice...

RELATED: Kate Middleton and Prince William Are Expecting Baby No. 3!

95 PHOTOS
The best photos of Prince George
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The best photos of Prince George

What's Christmas Day without a candy cane?!

December 2016

(PA Wire/PA Images)

Look.at.that.smile.

Fall 2016

(PA Wire/PA Images)

No caption necessary.

Fall 2016

(PA Wire/PA Images)

Father and son bonding time!

Fall 2016

(PA Wire/PA Images)

An adorable handout photo released by the Duke and Duchess of Cambridge of Prince George, who celebrates his third birthday today July 22nd, standing on a swing. 

July 2016

Prince George celebrates his birthday with a sweet treat -- and the family pet, Lupo! 

July 2016

The birthday boy sits on the swing bearing his mother and father's names. 

July 2016

He's growing up so fast!! George is adorable in stripes and khaki shorts.

July 2016

Prince George's first official engagement! That's a total face of "I've got this."

July 2016

Someone's excited!

July 2016

Favorite. The young royal had so much fun exploring the planes with mom and dad! 

July 2016

George waves to his adoring crowd.

July 2016

Just George and his dad.

July 2016

He wasn't too sure about the noise, though. "Uhhhh wait Mom, pick me up!" 

July 2016

The planes were a little too loud!

July 2016

And he got a sweet sticker, too!

July 2016

Phew. Long day!

July 2016

Charlotte makes her balcony debut at the Queen's 90th birthday Trooping the Colour, but George stole the show with his excitement over the planes!

June 2016

When the sun is blinding but you're still like "LOOK MOM!"

June 2016

We love this one -- he just looks so happy!

June 2016

Best. Moment. Ever.

June 2016

George can't believe how cool this day is. (And someday this parade will be for him!)

June 2016

Such a bright sun, but he has to see those planes!

June 2016

Kate chats with little George as he gets ready for bedtime (after a fun ride on his rocking horse, of course!)

April 2016

George shows the Obamas just how much he loves the gift they gave him -- looking mighty cute as he does.

April 2016

This might be one of the best photos um ... ever. Prince George meets President Obama in his adorable gingham jammies and a matching robe with his name on it? Does it get any cuter?!

April 2016

Kate holds little Charlotte while George snuggles in between his parents during a family vacation skiing in the French Alps.

March 2016

George looks like he's found a new favorite hobby!

March 2016

Prince George heads to his first day of school, taken by the Duchess of Cambridge. George is attending the Westacre Montessori nursery school near Sandringham in Norfolk.

January 2016

The little Prince seemed quite enthralled with the mural near his school!

January 2016

Kate and William with their two children, Prince George and Princess Charlotte, in a photograph taken at Kensington Palace in London.

October 2015

Prince George, who celebrated his second birthday on July 22, 2015 hams it up for the camera in his dad's arms!

July 2015

George plays with his hair in this first photo released of the Cambridges as a family of four, on the day they celebrated little Princess Charlotte's christening. 

July 2015

George was adorably a bit fussy after his sister's christening -- he was looking for the rest of the family to make sure they were coming too!

July 2015

George stares that camera down.

July 2015

Spotted: Cameras, crowds ... "who are these people?"

July 2015

Still looking for his family! Kate and William soothe the little royal, promising they'll be along soon.

July 2015

"You okay, Char?" George checks on his little sister in her pram.

July 2015

Kate and George watched William play in a polo match, playing their own games on the sidelines!

June 2015

George makes a hilarious/adorable face at his dad after the match.

June 2015

Whoa there! Kate stops a tumble for her two-year-old while playing on the hill.

June 2015

Prince George plays with his cousin Isla Phillips.

June 2015

George makes his balcony debut! The little prince worked on his royal wave as he joined his family to celebrate Trooping the Colour.

June 2015

Music, a parade and a multi-plane flyover for your great-grandmother's birthday? Pretty cool day for George.

June 2015

Still a bit of confusion for this little one as he peers at the massive crowd below.

June 2015

So sassy! George watched his parents in the parade before heading out onto the balcony, making the funniest face when he saw them.

June 2015

He's learning fast! George waves goodbye to his adoring public.

June 2015

How could you not love him?!

June 2015

The first set of photos released of little Princess Charlotte were in her big brother's arms -- and taken by mom, Kate.

June 2015

George gives his baby sister a kiss. Too cute!

June 2015

On the day Princess Charlotte was born, William ran home to give the good news to George, then brought him to meet his new sister.

May 2015

William gives George a kiss before they head inside for the big moment!

May 2015

Christmas photographs of Prince George sitting on the Kensington Palace steps, released by his proud parents William and Kate. 

November 2014

Christmas photographs of Prince George sitting on the Kensington Palace steps, released by his proud parents William and Kate. 

November 2014

Christmas photographs of Prince George sitting on the Kensington Palace steps, released by his proud parents William and Kate. 

November 2014

Prince George was up on his feet watching William play polo on Father's Day. 

June 2014

Kate holds wiggly George at the polo match.

June 2014

"Okay bye mom!" 

June 2014

"Um Mom, who is this lady?" 

April 2014

The always fashionable George was decked out in red for the last day of the royal tour. 

April 2014

"Wait! I think I dropped my toy - no seriously, I can see it from here!" 

April 2014

This cutie touches down in Australia's capital. 

April 2014

William, Kate and George visited the Taronga Zoo in Sydney and George got to meet a bilby! He was really excited about it. 

April 2014

Just a dad and his boy!

April 2014

Testing out his Princely roar.

April 2014

Just look at those chubby little cheeks!

April 2014

We couldn't help but laugh out loud at George's mean mug right here.

April 2014

Playing with his toy bilby.

April 2014

"Okay mom. It's really bright out here... AND I'm wearing ruffles. Can we talk about this?"

April 2014

"What's up, Australia?"

April 2014

Ah, the Princely handshake.

April 2014

We're obsessed with William and George's matching fly-away hair as they left New Zealand.

April 2014

Looks like it's nap o'clock!

April 2014

"Here, mom, let me help you."

April 2014

Too cute for words.

April 2014

This photo is Kate's favorite from their royal tour, where baby George had just woken up from his nap and was so happy to hug his mom.

April 2014

Little George during his New Zealand playdate!

April 2014

Baby George arrives in New Zealand.

April 2014

This photo might just be our favorite -- Georgie looks like he's trying to dive out of Kate's arms! Good thing she has a solid grip.

April 2014

Such a cutie!

April 2014

The palace released this official photo just a week before the family takes off for Australia and New Zealand. Oh how he's grown! Cutie George gazes at his pup, Lupo (in a dashing sweater with his name on it).

March 2014

Kate and William proudly presented George on his christening day.

October 2013

Quite the outfit, Georgie!

October 2013

William and George.

October 2013

William and George.

October 2013

Kate, in Alexander McQueen, and George in the royal christening dress.

October 2013

Kate and George.

October 2013

George's first official portrait! Lupo got to be in this one, too. 

August 2013

Kate debuts her son, Prince George Alexander Louis of Cambridge.

July 2013

Kate, William and George.

July 2013

Kate, William and George.

July 2013

Kate wore a simple, pretty, polka-dotted dress by Jenny Packham.

July 2013

William carries George to the car.

July 2013

Cutie heads home!

July 2013

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