Royalty. Born Prince William Arthur Philip Louis Windsor, on June 21, 1982, the eldest son of Diana, Princess of Wales, and Charles, Prince of Wales. His official title is His Royal Highness Prince William of Wales.
Prince William Arthur Philip Louis was born on June 21, 1982 to Prince Charles and Princess Diana, Prince and Princess of Wales. At his birth he became and is still second in line to the throne of the United Kingdom, after his father.