"Gausfredus…Autissiodorensis episcopus" donated the church of "Vetus Domziacus" to Cluny at the request of "miles…Harveus" in the presence of "filiorum suorum…Raginaldi, Gaufredi, Arvei, Hugonis" by charter dated [26 Mar] 1055.
He succeeded [in 1078] as Comte de Chalon, sharing the county with Guy de Thiern. He is named with his three sons in a 1086 charter, which also names his nepos Renaud son of Robert de Châtillon. A charter dated to [1096] records that "Gaufridus de Dunziaco" had sold "partem mediam comitatus Cabilonensis" to "domno Saverico…avunculo suo" on leaving for Jerusalem "cum Wydone de Tyhæra".
The necrology of Auxerre cathedral records the death 4 Aug of "Gaufridus comes Cabillon", specifying that he had become a monk "apud castrum suum Donziacum".
The name of Geoffroy's wife is not known. 2
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