Hussaini, the Aga Khan IV and 49th hereditary imam of the Shia Ismaili Muslims and a renowned philanthropist, has died at 88.

Ceremonies were being held Tuesday in Ismaili communities in the U.S. and others were held elsewhere in the world Wednesday.

The Aga Khan, who became the spiritual leader of the world's millions of Ismaili Muslims at the age of 20, has died aged 88.

Philanthropist and spiritual leader of the world's Ismaili Muslims dies - Aga Khan was given the title of ‘His Highness’ by ...

The Aga Khan IV, leader of the world's Ismaili Muslims, who fused entrepreneurship and philanthropy President Donald Trump's ...