Jamāl ad-Dīn al-Ḥasan bin Yūsuf bin ʿAli bin al-Muṭahhar al-Ḥillī (Arabic: جمال الدين الحسن بن يوسف الحلي; December 1250 – December 1325 CE), commonly known as Allāma Ḥelli (Persian: علامه حلی), was a Twelver Shia theologian and mujtahid. He was one of the well known Shia scholars of his time. His full name is Jamāl ad-Dīn Abu Manṣūr al-Ḥasan bin Yūsuf ibn al-Muṭahhar al-Ḥillī. We know of at least one hundred books written by him, some of which are still in the form of manuscripts. Muhammad bin Al-Hassan al Hurr Al- Amili in his work Amal al Amil, p. 40, enumerated no less than 67 works of this learned author. Source: Wikipedia (en)