Of humble origin, Ibn al-Qayyim's father was the principal ("qayyim") of the School of Jawziyya, which also served as a court of law for the Hanbali judge of Damascus during the time period. Ibn al-Qayyim went on to become a prolific scholar, producing a rich corpus of "doctrinal and literary" works. As a result, numerous important Muslim scholars of the Mamluk period were among Ibn al-Qayyim's students or, at least, greatly influenced by him, including, amongst others, the Shafi historian Ibn Kathir (d. 774/1373), the Hanbali hadith scholar Ibn Rajab (d. 795/1397), and the Shafi polymath Ibn Hajar al-Asqalani (d. 852/1449). In the present day, Ibn al-Qayyim's name has become a controversial one in certain quarters of the Islamic world due to his popularity amongst many adherents of the Sunni movements of Salafism and Wahhabism, who see in his criticisms of such widespread orthodox Sunni practices of the medieval period as the veneration of saints and the veneration of their graves and relics a classical precursor to their own perspective.