ESC: Kate Middleon, Princess Charlotte

Chris Jackson/Getty Images

She's growing up right before our eyes!

Our most since birthday wishes go out to Princess Charlotte, who turns 3-years-old today. The royal toddler's milestone celebration comes only a week after the arrival of Prince William and Kate Middleton's third child—a son they named Prince Louis—officially made Charlotte a big sister.

It feels like yesterday the Duke and Duchess of Cambridge welcomed a daughter into the mix, and over the past three years we've seen Princess Charlotte blossom into one sweet little lady! 

Celebrate the future queen of England's special day by checking out her most adorable photos of all time. Happy birthday, Princess Charlotte! 

Princess Charlotte

The Duchess of Cambridge

Princess Charlotte

The Duchess of Cambridge

Princess Charlotte

The Duchess of Cambridge

Prince William, Kate Middleton, Princess Charlotte, Prince George, Prince Louis, Family Portrait

Matt Porteous/PA Wire

Princess Charlotte, Princess Eugenie Royal Wedding

Andrew Matthews/PA Wire

Prince George, Savannah Phillips, Princess Charlotte

Max Mumby/Indigo/Getty Images

Bridesmaids, Page Boys, Princess Charlotte, Royal Wedding

REX/Shutterstock

Princess Charlotte, Sticking Tongue Out, Royal Wedding

REX/Shutterstock

*FULLY EMBARGOED UNTIL 0001 GMT SUNDAY MAY 6th 2018** Prince Louis, Princess Charlotte

The Duchess of Cambridge at Kensington Palace

Princess Charlotte

Samir Hussein/WireImage

Princess Charlotte

Courtesy of the Duchess of Cambridge

Prince William, Prince George, Princess Charlotte

David Fisher/REX/Shutterstock

Princess Charlotte

Samir Hussein/Samir Hussein/WireImage

Prince William, Kate Middleton, Prince George, Princess Charlotte, Royal Christmas Card 2017

Chris Jackson/Kensington Palace/Getty Images

Princess Charlotte

HRH The Duchess of Cambridge via Getty Images

Kate Middleton, Princess Charlotte, Prince George, Trooping the Colour 2017

Chris Jackson/Getty Images

Princess Charlotte, Kate Middleton, Pippa Middleton and James Matthews Wedding

JUSTIN TALLIS/AFP/Getty Images

Kate Middleton, Prince William, Prince George, Princess Charlotte

JOHN STILLWELL/AFP/Getty Images

Kate Middleton, Princess Charlotte

Andrew Matthews/PA Images via Getty Images

ESC: Princess Charlotte, Royals Gift Guide

Chris Jackson - Pool/Getty Images

Princess Charlotte, Official Photo

HRH The Duchess of Cambridge

Kate Middleton, Prince William, Prince George, Princess Charlotte, Christmas Card, 2015

Chris Jelf /Kensington Palace via Getty Images

Duchess of Cambridge, Kate Middleton, Princess Charlotte, Christening

© Mario Testino / Art Partner

Princess Charlotte

Press Association via AP Images/HRH The Duchess of Cambridge

Princess Charlotte

Press Association via AP Images/HRH The Duchess of Cambridge

Princess Charlotte, Prince George, Duchess Catherine, Prince William

HRH Duchess of Cambridge

Kate Middleton, Catherine, Duchess of Cambridge, Princess Charlotte, Prince William

John Stillwell - WPA Pool/Getty Images

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