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.

Following the death of his father the Aga Khan IV, Prince Rahim Al-Hussaini has been announced as the new Aga Khan—the spiritual leader of the world’s Ismaili Muslims, a branch of Shia Islam. He was designated as Aga Khan V in his father’s will, which was unsealed yesterday.

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