Hussaini, the new spiritual leader of Ismaili Muslims, was named as the successor to his father, who died at 88.

LISBON, Portugal (AP) — Rahim Al-Hussaini was named Wednesday as the new Aga Khan, spiritual leader of the world’s millions of Ismaili Muslims, following the death of his father. The Aga Khan is considered by his followers to be a direct descendant of the Prophet Muhammad and is treated as a head of state.

Prince Rahim Al-Hussaini has been named the new Aga Khan, spiritual leader of millions of Shia Ismaili Muslims around the world. He will take on the role from his father Prince Karim Aga Khan, who died on Tuesday at the age of 88.