Ali Ibn Ridwan

Abu'l Hassan Ali ibn Ridwan Al-Misri, أبو الحسن علي بن رضوان المصري was an Arab of Egyptian origin who was a physician, astrologer and astronomer, born in Giza. He was a commentator on ancient Greek medicine, and in particular on Galen; his commentary on Galen's Ars Parva was translated by Gerardo Cremonese.