The current Aga Khan IV is the son of II and II's first wife, Joan Yarde-Fuller.
The Aga Khan is half-English and his heir, the presumptive Aga Khan V, is his son by his first wife Sally Croker-Poole.
The Aga Khan V is three-quarters English and has been raised in the UK from birth.
Religious dynasty. A primary reason there are schisms among muslims.
Hayworth left her film career in 1948 to marry the Pakistani Prince Ali Khan, who was the vice-president of the United Nations General Assembly representing Pakistan. He was also the son of Aga Khan III, the leader of the Ismaili sect of Shia Islam. They had one daughter, Princess Yasmin Aga Khan (who cared for her mother until her death).