William of Marseille[1] was a thirteenth-century English academic, teaching in France. He is known for the medical-astrological treatise De urina non visa.[2] The method is to use a horoscope to deduce properties of the urine of a patient for diagnosis, when the urine itself cannot be obtained.[3] This book was still used at the University of Bologna in 1405.[4]
From Liste lateinischer Autoren und anonymer Werke des 13. Jahrhunderts (ca. 1170-1320)