Queen Elizabeth II and Prince Philip pose with seven of their great-grandchildren in this photo taken in 2018. The children, from left, are Prince George, Prince Louis, Princess Charlotte, Savannah Phillips, Isla Phillips, Lena Tindall and Mia Tindall.
The Duchess of Cambridge/Getty Images

In pictures: Britain's royal children

Updated 1823 GMT (0223 HKT) May 3, 2021

Queen Elizabeth II and Prince Philip pose with seven of their great-grandchildren in this photo taken in 2018. The children, from left, are Prince George, Prince Louis, Princess Charlotte, Savannah Phillips, Isla Phillips, Lena Tindall and Mia Tindall.
The Duchess of Cambridge/Getty Images

Princess Charlotte, the only daughter of Britain's Prince William and his wife Catherine, Duchess of Cambridge, just celebrated her sixth birthday on Sunday, May 2.

Her cousin Archie, the only son of Prince Harry and his wife Meghan, the Duchess of Sussex, will turn 2 years old on May 6.

They are two of Queen Elizabeth II's 10 great-grandchildren. Here's a closer look at them and other young children in the royal family.