Both before and after Frederick's death in 1190 he enjoyed the favor of his son, the emperor Henry VI. In light of his duties he was familiar with the highest levels of authority in both circles and collected historical material, in his own words, for over forty years as notary and chaplain to the Emperor Frederick.
In the politico-ecclesiastical conflicts of his time -the Conflict of Investiture- he sided with the emperor, without, however, declaring himself inimical to the pope. He blames Pope Alexander's predecessor, Hadrian, for the schism, inasmuch as the latter had allied himself with the Byzantines and Normans against the emperor.
In his work Liber universalis 'universal book', he chronicles world history from the creation to the time of Henry VI. Godfrey's Memoria seculorum, or Liber memorialis, a world chronicle dedicated to Henry VI, professes to record the history of the world from the creation until 1185 when it was completed. It is written partly in prose and partly in verse.
The Memoria seculorum was very popular during the Middle Ages, and has been continued by several writers. A revision of this work was drawn up by Godfrey himself from 1185 as Pantheon, or Universitalis libri qui chronici appellantur, a history of the world which enjoyed an unmerited fame during the Middle Ages. The author borrowed from Otto of Freising, but the earlier part of his chronicle is full of imaginary occurrences. Pantheon was first printed in 1559, and extracts from it are published by L. A. Muratori in the Rerum Italicarum scriptores, tome vii (Milan, 1725). The author, delighting as he does in fables, has gathered much material for the history of folklore.
A work considered particularly valuable is the Gesta Friderici I ((res) gesta is Latin for 'deeds', a common title for biographical works), verses relating events in the emperor's career from 1155 to 1180. Concerned mainly with affairs in Italy, the poem tells of the sieges of Milan, of Frederick's flight to Pavia in 1167, of the treaty with Pope Alexander III at Venice, and of other stirring episodes with which the author was intimately acquainted, and many of which he had witnessed. This metrical account of the achievements of Barbarossa, though not free from confusion, contains some valuable information.
Attached to the Gesta Friderici is the Gesta Heinrici VI, a shorter poem which is often attributed to Godfrey, although Wilhelm Wattenbach and other authorities think it was not written by him.
Another minor work is Denominatio regnorum imperio subiectorum, a 'denomination of kings subject to the empire'.
