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 ...

(AP Photo/Haytham Fahmy)ASSOCIATED PRESSRelatives of Prince Karim Al-Hussaini, the Aga Khan IV and 49th hereditary imam of the Shiite Ismaili Muslims, who died Tuesday in Portugal, walk during a ...

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 ...

PARIS — 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 ...

The Aga Khan, spiritual head of Ismaili Muslims, listens to a speech during the inauguration of the Aga Khan Academy in Hyderabad, India, Friday, Sept. 20, 2013. Credit: AP/Mahesh Kumar A.

The Aga Khan, spiritual head of Ismaili Muslims, listens to a speech during the inauguration of the restored 16th century Humayun's Tomb in New Delhi, India, Sept. 18, 2013.

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 ...

FILE – The Aga Khan, spiritual head of Ismaili Muslims, listens to a speech during the inauguration of the restored 16th century Humayun’s Tomb in New Delhi, India, Sept. 18, 2013.