A physician to King Sancho the Wise of Navarre, who valued the former's art so highly that he presented him with seven acres of land and twelve diets of vineyards at Mosquera and Fontellas (two villages near Tudela), and granted him the "infanzon privileges" (privileges of the nobility) for the whole kingdom. In 1193, his royal master transferred to him the ownership of the baths situated near the Albazares-gate at Tudela (Kayserling, "Gesch. d. Juden in Spanien," i. 20 et seq.).