William Prince of Wales is the Grandson of Queen Elizabeth II and was born June 21, 1982, including biography, historical timeline and links to the British royal family tree . Learn about the heir to the throne, his family, his charitable activities and his official duties. Find out more about his biography, his support for the monarch, the environment, homelessness, mental health and more. On day two of his Brazil visit, the Prince of Wales also visited Paqueta and planted saplings. As the UK's head of state, King Charles has number of parliamentary and constitutional duties. The ... William, Prince of Wales , KG, KT, GCB, PC, ADC ( William Arthur Philip Louis; 21 June 1982) is a member of the British royal family and the heir apparent to the British throne.