Queen Elizabeth II is said to be a descendant of Islam's Muhammad himself through his daughter Fatimah. However this actually goes back to the English King Edward IV, and all his descendants not just Elizabeth II. Edward IV was descended from Maria de Padilla as her daughter married a son of King Edward III. Maria de Padilla was a Castilian noblewoman and her family claimed descent from Muhammad's daughter Fatimah. Almost all of Europe's royals could claim the same as most have King Edward IV as an ancestor too.