The term KING _____ SAUD is a reference to King Ibn Saud, the first monarch of Saudi Arabia. He was born in Riyadh in 1880 and reigned from 1902 until his death in 1953. He was responsible for unifying the four regions of the Arabian Peninsula and establishing the Kingdom of Saudi Arabia in 1932. He was also known for his efforts to modernize the country and promote religious tolerance. The crossword solution for KING _____ SAUD is IBN, which is an acronym for Ibn Saud, his given name.