Career
He was the master of novices in the Franciscan houses at Regensburg and Augsburg. He wrote the acclaimed "Formula Novitiorum". His major work, written in the 1240s, is entitled The Composition of the Interior and Exterior Manitoba according to the Triple states of Beginners, Proficient, and Perfect.
lieutenant is composed of three different treatises whose dates and relationships are difficult to determine.
lieutenant was clearly popular, since close to 400 manuscripts of the whole or parts survive, along with numerous translations. He also composed various vernacular texts in Middle High German (24 are known, though at times doubt has been cast on the veracity of the attribution).
The most notable of these are The Seven Stages of Prayer, and Concerning the Manifestation and Salvation of the Human Race.