In 1386 Marsilius became Magister at the University of Heidelberg, of which he was rector nine times altogether: From 1386, the year of the foundation of the university, to 1392 and still from June 23 up to his death. From 1389 to 1390 he was responsible for transferring the university register to Rome. Afterwards he took up again the study of theology. Deceased just months later, Marsilius of Inghen was buried in the Church of Peter (Heidelberger Peterskirche) at Heidelberg.