High Quality Content by WIKIPEDIA articles! Abdul Aziz Al Saud, King of Saudi Arabia (1876 November 9, 1953) was the first monarch of The Third Saudi State known as Saudi Arabia. Of his full name Abdul Aziz bin Abdur Rahman Al Saud, he was commonly referred to as ibn Saud. He was born in Riyadh into the House of Su' d (commonly transliterated Saud), which had followed the Wahhabi movement of Islam since the 18th century and had historically maintained dominion over the interior highlands of Arabia known as the Nejd (see First Saudi State and Second Saudi State). Beginning with the reconquest of his family's ancestral home city of Riyadh in 1902, Ibn Saud consolidated his control over the Nejd in 1922, conquered the Hejaz in 1925. The nation was founded and unified as Saudi Arabia in 1932. His later reign saw the discovery of petroleum in Saudi Arabia in 1938, and the beginning of large-scale exploitation of that resource after World War II. Ibn Saud was the father of many children, including all kings of Saudi Arabia that have ruled after him.