At the age of 20, Prince Karim Al-Hussaini inherited the reins of a Shia Muslim lineage and used his entrepreneurship to become one of the world’s richest hereditary rulers.

PARIS (AP) — 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, hospitals and schools in developing countries, has died. He was 88.

Prince Karim's ancestors had fled Persia for India two centuries ago. He was born in Switzerland and spent much of his later years living France, though he had British citizenship, as per MailOnline.He became the Aga Khan IV on Oct.