The Aga Khan, who became the spiritual leader of the world’s millions of Ismaili Muslims at age 20 as a Harvard undergraduate and poured a material empire built on billions of dollars in tithes into building homes,

The Aga Khan, the spiritual leader of the world's millions of Ismaili Muslims and a major philanthropist, has died. His son will succeed him.

“Prince Rahim Aga Khan V is the 50th hereditary Imam of the Shia Ismaili Muslims, as designated by his late father, Prince Karim Aga Khan IV, in accordance with historical Shia Imami Ismaili tradition,” read a communique from the Diwan of the Ismaili Imamat.