The Prince and Princess of Wales celebrated their daughter's birthday by sharing an adorable new photo.
The Princess of Wales said in March that she'd been diagnosed with cancer following abdominal surgery.
The event marks the king's first formal public engagement since Feb. 6.
The Prince and Princess of Wales celebrated 13 years of marriage on Monday.
The palace previously announced the king's cancer diagnosis on Feb. 5.
The “Pitch Perfect” star says a “Windsor” gave her “a last-minute invite to a tech billionaire’s party” that she innocently thought was just a costume party.
Louis Arthur Charles was born on April 23, 2018, at St. Mary's Hospital in London.
The queen was born Elizabeth Alexandra Mary in London on April 21, 1926.
The Prince of Wales stepped out for his first in-person engagement after the Princess of Wales shared her health update on March 22.
"Said he wrote a book," the actor quipped after running into the Duke of Sussex.
