Prince Karim Al-Hussaini, Aga Khan IV, the 49th hereditary Imam of the Shia Ismaili Muslims, passed away on February 4 at the age of 88 in Lisbon, surrounded by his family.

Tasked by Prince Karim Aga Khan IV in the 1960s to design and develop Porto Cervo and the Costa Smeralda, Jacques Couelle and Michele Busiri Vici are among the architects credited with the ...

He's the son of imam and philanthropist Prince Karim Aga Khan IV, who had an estimated net worth of $13.3 billion in 2013, according to Vanity Fair.