The Aga Khan addresses an audience about the challenges to a pluralistic society on Thursday, Nov. 12, 2015, at the Memorial Church on the campus of Harvard University, in Cambridge, Massachusetts.

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 ...

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 ...

LISBON, Portugal — Rahim Al-Hussaini was named Wednesday as the new Aga Khan, spiritual leader of the world's millions of Ismaili Muslims, following the death of his father. The 53-year-old was ...

The Aga Khan addresses an audience about the challenges to a pluralistic society on Thursday, Nov. 12, 2015, at the Memorial Church on the campus of Harvard University, in Cambridge, Massachusetts.

The Aga Khan, the spiritual leader of Ismaili Muslims, has died. Karim Al-Hussaini became the Aga Khan at age 20 as a Harvard undergraduate when his grandfather passed over his ...

The Aga Khan addresses an audience about the challenges to a pluralistic society on Thursday, Nov. 12, 2015, at the Memorial Church on the campus of Harvard University, in Cambridge, Massachusetts.

The Aga Khan addresses an audience about the challenges to a pluralistic society on Thursday, Nov. 12, 2015, at the Memorial Church on the campus of Harvard University, in Cambridge, Massachusetts.

The Aga Khan addresses an audience about the challenges to a pluralistic society on Thursday, Nov. 12, 2015, at the Memorial Church on the campus of Harvard University, in Cambridge, Massachusetts.