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 "Hussa bint Ahmed Al Sudairi"): Hussa bint Ahmed Al Sudairi (1900–1969) was one of King Abdulaziz many spouses and the mother of King Fahd and King Salman, monarchs of Saudi Arabia.
Relevant evidence: Yes