The Prince Charles, Prince of Wales (Charles Philip Arthur George Mountbatten-Windsor; born Windsor, 14 November 1948), is the eldest son of Queen Elizabeth II and Prince Philip, Duke of Edinburgh. He is Heir Apparent to the respective thrones of the United Kingdom and the other 15 Commonwealth Realms. He has held the title of Prince of Wales since 1958, and is styled HRH The Prince of Wales, except in Scotland, where he is styled HRH The Prince Charles, Duke of Rothesay, and (unofficially) in Cornwall, where he is known as "The Duke of Cornwall". Constitutionally, he is the first in line to the throne, but third in order of precedence, following his parents.