William at 40: A milestone birthday in a life under scrutiny

FILE - Britain's Prince William, President of The Royal Marsden NHS Foundation Trust, leaves after visiting to learn about the innovative work that is currently carrying out to improve cancer diagnosis, in London, Tuesday, May 24, 2022. The world watched as Prince William grew from a towheaded schoolboy to a dashing air-sea rescue pilot to a father of three. But as he turns 40 on Tuesday, June21, 2022, William is making the biggest change yet: assuming an increasingly central role in the royal family as he prepares for his eventual accession to the throne. (AP Photo/Frank Augstein, Pool, File)