Meet the new Aga Khan who takes over from his father as leader of 15 million Ismaili Muslims - The 53-year-old becomes the imam of Shiite Ismaili Muslims, estimated to be around 12 to 15 million globa

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,