He is the author of Bescheidenheit ("practical wisdom, correct judgement, discretion"[1]), a collection of rhyming aphorisms in 53 thematic divisions, extending to some 4,700 verses.
The work was extremely popular in the German Middle Ages and is transmitted in numerous manuscripts, as well as in a Latin translation (Fridangi Discretio).
This hypothesis was immediately rejected by the majority of scholars; according to Bartsch (1878), the only German philologist convinced by Grimm's idea was Wackernagel.
It seems likely that in 1228–1229 he was involved in the Sixth Crusade of the Hohenstaufen emperor Frederick II, as the section about Acre seems to refer to this period.
It is a collection of rhyming aphorisms in 53 thematic divisions and about 4,700 verses which encapsulate the folk wisdom and experience of the period.