Prince Rahim Aga Khan V leads his father’s funeral in Lisbon, marking a new era. Global Ismaili leaders pledge allegiance to Prince Rahim Aga Khan V as the 50th Imam.

Descendant of Prophet Mohammed is also one of world's richest men. The Aga Khan, spiritual leader of Ismaili Muslims, looks on during a speaking event at Massey Hall in Toronto, Feb. 28, 2014 ...