Abdulaziz ibn Abdul Rahman ibn Faisal ibn Turki ibn Abdullah ibn Muhammad Al Saud (Arabic: عبد العزيز بن عبد الرحمن بن فيصل بن تركي بن عبد الله بن محمد آل سعود‎, Abd al-'Azīz ibn 'Abd ar-Raḥman Āl Sa'ūd; 15 January 1875[1] – 9 November 1953), usually known within the Arab world as Abdulaziz[2] and in the West as Ibn Saud,[3] was the first monarch and founder of Saudi Arabia, the "third Saudi state".[4]