The death of the Aga Khan, the spiritual leader of the world’s millions of Ismaili Muslims, struck a deep chord with Houston’s sizable Ismaili Muslim community Tuesday. His Highness Prince Karim Al-Hussaini,

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 father as his successor.

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.