Taqī ad-Dīn ʾAḥmad ibn ʿAbd al-Ḥalīm ibn ʿAbd al-Salām al-Numayrī al-Ḥarrānī (, January 22, 1263 – September 26, 1328), known simply ibn Taymīyyah (), was a Sunni Islamic scholar, muhaddith, theologian, judge, philosopher, and sometimes controversial thinker and political figure. He is known for his diplomatic involvement with the Ilkhanid ruler Ghazan Khan and for his involvement at the Battle of Marj al-Saffar which ended the Mongol invasions of the Levant. A member of the Hanbali school, Ibn Taymiyyah's iconoclastic views on widely accepted doctrines of his time such as the veneration of saints and the visitation to their tomb-shrines made him unpopular with many scholars and rulers of the time, under whose orders he was imprisoned several times.