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

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.

Billionaire philanthropist and spiritual leader Aga Khan IV has died at 88. He was the spiritual leader of the millions of Ismaili Muslims across the world. They believed that he was a direct descenda