Godefroy de la Roche Vanneau explained
Godefroy de la Roche Vanneau was bishop of Langres from 1139. He was a prominent aide to his cousin, Bernard of Clairvaux. He was appointed a prior of the Clairvaux Abbey in 1128. He joined the Second Crusade and urged King Louis VII of France to attack Constantinople in 1147.
Sources
- Book: Bredero, Adrian H.. 1996. 1993. Bernard Of Clairvaux: Between Cult and History. T&T Clark. 0-567-08523-6.
- Book: Lilie, Ralph-Johannes. Ralph-Johannes Lilie. 1993. 1981. Byzantium and the Crusader States 1096-1204. Oxford University Press. 0-19-820407-8.