FRANCIS OF MAYRONE (d. c. 1326), scholastic philoso pher, was born at Mayrone, Provence. He joined the Franciscans and subsequently went to Paris, where he was a pupil of Duns Scotus. At the Sorbonne his teaching and ability in discussion gained him the title Doctor Illuminates. He died at Piacenza c. 1326. Depreciating Aristotle, he developed the Platonic theory of ideas and declared that universals are prior in nature to indi viduals. His elaborate subtleties made him the real producer of the system known as Scotism. His numerous works include the De Primo Principio, De univocatione entis, Quodlibeta, and com mentaries on the Isagoge of Porphyry, on the logical works and Physics of Aristotle, and on the Sentences. Partial collections appeared at Venice in 1517 and 152o.