Crown Prince 'Abd al-IlÄh (Arabic: عبد الإله ) (also written Abdul Ilah), (1913-1958), was the cousin of and brother-in-law of King Ghazi, and was regent of Iraq for King Faisal II from April 4, 1939 to May 2, 1953, when Faisal came of age. He also held the title of Crown Prince of Iraq from 1943.