 In Cologne, too, he made close friendships with several members of the Carthusian Order, among them Johann Landsberger, Gerhard Homontanus, and Theoderich and Bruno Loher.Though his health did not allow him to become a member of the order, he lived in the monastery, for a time at least, and followed its rule of life as closely as possible.In 1538 Nicolaus was appointed pastor of the Béguinage at Diest; after a year he surrendered his charge for a time, but took it up again, with such success that after his death he was commonly spoken of as the saintly Father Eschius.