 He was admitted to the cathedral chapter of Mainz in 1687, Bamberg in 1694 and Würzburg Cathedral in 1699.He was also named "Probst" of Frankfurt Cathedral in 1699.By the time he became "Dompropst" at Würzburg (1704) and Mainz (1714), he had already served his uncle in several diplomatic missions and had been his local representative at Erfurt.