Rahim Al-Hussaini was named Wednesday as the new Aga Khan, spiritual leader of the world’s millions of Ismaili Muslims, ...

The Aga Khan IV was often referred to as a philanthropist, but the description ignores the spiritual impetus for his work.

Aga Khan, 49th Imam of Nizari Ismailis gives an interview as he arrives in London for an official visit in 1957.

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 ...