Prince William, right, holds a dog to his younger brother, Prince Harry on August 9, 1987, while on holiday with their parents the Prince and Princess of Wales, unseen. The Royal family is on holiday with King Juan Carlos of Spain, unseen, and his family at his Mediterranean Palace in Majorca. (AP Photo/John Redman)
Britain's Prince William
Britain's Prince William, the oldest son of Princess Diana and Prince Charles, turned 31 on June 21. The prince, also known as the Duke of Cambridge, is expecting his first child with wife, Catherine Middleton.