Georg Forster, a Protestant, became his librarian and William Heinse, another Protestant, and author of the lascivious romance "Ardinghello", was his official reader. Erthal suppressed the Carthusian monastery and two nunneries at Mainz and used their revenues to meet the expenses of the university, in which he appointed numerous Protestants and free-thinkers as professors.
Georg Forster was appointed librarian by this person; William Heinse, a Protestant author of the erotic novel "Ardinghello", served as his official reader. Erthal closed the Carthusian monastery and two nunneries in Mainz, using their resources to fund the university, where he hired many Protestants and thinkers as professors.