Prince Rahim Al-Hussaini has been appointed the 50th hereditary Imam of the Shia Ismaili Muslims following the passing of Aga Khan IV at age 88. The Aga Khan Development Network announced the leadership transition after unsealing the late Aga Khan’s will.

Prince Rahim Al-Hussaini was named the 50th hereditary Imam, or spiritual leader, of Ismaili Muslims on Wednesday after the will of his late father Prince Karim Aga Khan IV was unsealed, the Aga Khan Development Network said.