Question: Who was the son of one of King Abdulaziz many spouses who's brother  is King of Saudi Arabia, Custodian of the Two Holy Mosques, and head of the House of Saud ?
Sentence (from "Islam in Saudi Arabia"): The kingdom, which sometimes is called the "home of Islam", is the location of the cities of Mecca and Medina, where Muhammad, the messenger of the Islamic faith, lived and died, and attracts millions of Muslim Hajj pilgrims annually, and thousands of clerics and students who come from across the Muslim world to study.
Relevant evidence: No