The Aga Khan IV, the spiritual leader of Ismaili Muslims, died at 88 in Portugal. He became an imam at age 20. He led the Aga Khan Development Network, improving health, education, and livelihoods in 30 countries. He is well known for building bridges between Muslim societies and the West. Prince Karim Aga Khan was the 49th hereditary imam of the Ismaili Muslims. He succeeded his grandfather as imam of the Ismaili Muslims in 1957 at the age of 20. Over decades, the Aga Khan evolved into a business magnate and a philanthropist, moving between the spiritual and the worldly with ease.

The Aga Khan will be buried in Lisbon. His successor, named in his will, will be announced soon in the presence of his family and religious leaders in Lisbon before the name is made public. He is survived by three sons, a daughter, and grandchildren