Britain's Princess Charlotte is joined by her parents and her brother Prince George as she arrives for <a href="index.php?page=&url=https%3A%2F%2Fwww.cnn.com%2F2019%2F09%2F05%2Fuk%2Fprincess-charlotte-school-gbr-intl%2Findex.html" target="_blank">her first day of school</a> on Thursday, September 5.
Britain's Princess Charlotte is joined by her parents and her brother Prince George as she arrives for her first day of school on Thursday, September 5.
Aaron Chown/AP
Kensington Palace released this undated photo of Charlotte <a href="index.php?page=&url=https%3A%2F%2Fedition.cnn.com%2F2019%2F05%2F01%2Fuk%2Fprincess-charlotte-birthday-photos-trnd%2Findex.html" target="_blank">to mark her fourth birthday</a> in May 2019. The photo was taken by Charlotte's mother Catherine, the Duchess of Cambridge, at their home in Norfolk, England. Charlotte is fourth in line to the British throne behind her grandfather, Prince Charles; her father, William; and her big brother, George.
Kensington Palace released this undated photo of Charlotte to mark her fourth birthday in May 2019. The photo was taken by Charlotte's mother Catherine, the Duchess of Cambridge, at their home in Norfolk, England. Charlotte is fourth in line to the British throne behind her grandfather, Prince Charles; her father, William; and her big brother, George.
Duchess of Cambridge/AP
Charlotte turns to wave at journalists as she arrives with her father and her brother George to meet the <a href="index.php?page=&url=https%3A%2F%2Fedition.cnn.com%2Finteractive%2F2018%2F04%2Fworld%2Froyal-baby-cnnphotos%2Findex.html" target="_blank">newest member of their family</a>, her brother Prince Louis, in April 2018.
Charlotte turns to wave at journalists as she arrives with her father and her brother George to meet the newest member of their family, her brother Prince Louis, in April 2018.
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Charlotte smiles in a handout picture provided by the Duke and Duchess of Cambridge as she prepares for her first day at nursery school in January 2018.
Charlotte smiles in a handout picture provided by the Duke and Duchess of Cambridge as she prepares for her first day at nursery school in January 2018.
Handout/Kensington Palace
Charlotte arrives at Berlin Tegel Airport during the royals' <a href="index.php?page=&url=http%3A%2F%2Fwww.cnn.com%2F2017%2F07%2F17%2Fworld%2Fgallery%2Froyals-visit-poland-germany-2017%2Findex.html" target="_blank">official visit to Germany and Poland</a> in July 2017.
Charlotte arrives at Berlin Tegel Airport during the royals' official visit to Germany and Poland in July 2017.
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Charlotte is pictured at home in April 2017. The photograph was taken by her mother to mark her second birthday.
Charlotte is pictured at home in April 2017. The photograph was taken by her mother to mark her second birthday.
HRH The Duchess of Cambridge via Getty Images
Charlotte is held by her mother as her family ends <a href="index.php?page=&url=http%3A%2F%2Fwww.cnn.com%2F2016%2F09%2F24%2Fworld%2Fgallery%2Froyals-visit-canada-sept-2016%2Findex.html" target="_blank">an eight-day tour of Canada</a> in October 2016.
Charlotte is held by her mother as her family ends an eight-day tour of Canada in October 2016.
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Catherine holds flowers for Charlotte to smell as they leave Victoria, British Columbia, in October 2016.
Catherine holds flowers for Charlotte to smell as they leave Victoria, British Columbia, in October 2016.
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The royal family watches an entertainer blow up a balloon during a children's party in Victoria in September 2016.
The royal family watches an entertainer blow up a balloon during a children's party in Victoria in September 2016.
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The royal family arrives in Victoria in September 2016.
The royal family arrives in Victoria in September 2016.
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William and Catherine attend to Charlotte during <a href="index.php?page=&url=http%3A%2F%2Fedition.cnn.com%2F2016%2F06%2F11%2Feurope%2Fqueen-elizabeth-birthday-britain%2Findex.html" target="_blank">celebrations</a> marking the Queen's 90th birthday.
William and Catherine attend to Charlotte during celebrations marking the Queen's 90th birthday.
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Charlotte and her dad are photographed during a trip to the French Alps in March 2016.
Charlotte and her dad are photographed during a trip to the French Alps in March 2016.
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Charlotte plays with a stuffed dog in a photo taken by her mother in November 2015.
Charlotte plays with a stuffed dog in a photo taken by her mother in November 2015.
HRH DUCHESS OF CAMBRIDGE/Getty Images
This family photo was taken after <a href="index.php?page=&url=http%3A%2F%2Fwww.cnn.com%2F2015%2F07%2F05%2Feurope%2Froyal-baby-princess-charlotte-christening%2F" target="_blank">Charlotte's christening</a> in July 2015. In the front row, from left, are William, George, Catherine, Charlotte and Queen Elizabeth II. In the back row, from left, are Catherine's father, Michael Middleton; her sister, Pippa Middleton; her brother, James Middleton; her mother, Carole Middleton; Charles; Camilla, Duchess of Cornwall; and Prince Philip.
This family photo was taken after Charlotte's christening in July 2015. In the front row, from left, are William, George, Catherine, Charlotte and Queen Elizabeth II. In the back row, from left, are Catherine's father, Michael Middleton; her sister, Pippa Middleton; her brother, James Middleton; her mother, Carole Middleton; Charles; Camilla, Duchess of Cornwall; and Prince Philip.
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William and Catherine pose with their two children at Charlotte's christening.
William and Catherine pose with their two children at Charlotte's christening.
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Charlotte is pushed in her pram following her christening.
Charlotte is pushed in her pram following her christening.
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Charlotte is carried by her mother as they arrive for her christening.
Charlotte is carried by her mother as they arrive for her christening.
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The royal family arrives for the christening.
The royal family arrives for the christening.
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Charlotte <a href="index.php?page=&url=http%3A%2F%2Fwww.cnn.com%2F2015%2F06%2F06%2Feurope%2Fuk-royal-princess-charlotte-photos%2Findex.html" target="_blank">is seen with her big brother for the first time</a> in this photo released by Kensington Palace in June 2015.
Charlotte is seen with her big brother for the first time in this photo released by Kensington Palace in June 2015.
HRH The Duchess of Cambridge
Charlotte sleeps in a car seat as the family leaves St. Mary's Hospital in London on May 2, 2015. The <a href="index.php?page=&url=http%3A%2F%2Fwww.cnn.com%2F2015%2F05%2F02%2Feurope%2Fuk-royal-baby-duchess-of-cambridge-hospitalized%2F" target="_blank">newborn princess</a> weighed 8 pounds, 3 ounces.
Charlotte sleeps in a car seat as the family leaves St. Mary's Hospital in London on May 2, 2015. The newborn princess weighed 8 pounds, 3 ounces.
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William and Catherine are photographed leaving the hospital after Charlotte's birth.
William and Catherine are photographed leaving the hospital after Charlotte's birth.
Alastair Grant/AP