The Aga Khan was given the title of “His Highness” by Queen Elizabeth in July 1957, two weeks after his grandfather the Aga Khan III unexpectedly made him heir to the family’s 1,300-year dynasty as leader of the Ismaili Muslim sect.

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 "evolved into a business magnate and a philanthropist, moving between the spiritual and the worldly with ease," The Associated Press said. "Urbane, cosmopolitan and often media-averse," the Times said,