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.

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 53-year-old was designated as the Aga Khan V,

Hussaini, the Aga Khan — the title given to the imam of the Nizari Ismailis, a branch of Shia Islam — died February 4 in Lisbon at the age of 88. He led a major development aid foundation.