The parents of the brothers Geoffroy [II] and Hugues de Mayenne have not been satisfactorily identified. It is chronologically improbable that Geoffroy [II] was the same person as Geoffroy [I] Seigneur de Mayenne. It is more likely that the brothers were sons of Geoffroy [I], younger brothers of Gauthier [I], but this is speculation until more primary source documentation emerges.
Seigneur de Mayenne. The Chronique de Normandie, based on le Roman de Rou, names "Geffroy sire de Maienne" among those who took part in the conquest of England in 1066.
Comte du Maine 1070/71, as the lover of Gersende Ctss du Maine. The Actus pontificum Cenomannis records that "Atho marchisius" left Maine in the hands of "Gaufridi de Meduana", also naming "uxor eiusdem marchisii Garcendis…filia Herberti Cenomannorum…comitis…Evigila Canem" and specifying that she had married firstly "Theobaldo duci Campanie" and that he had repudiated her. The same source comments that "Gaufredi de Meduana" was "tutor et quasi maritus", implying that Gersende was his mistress. "Goffridus…de Meduana" founded "ecclesiam in honore…confessoris Christi Nicolai" at "castro suo…Carcer" [La Chartre] and placed there the monks of La Trinité de Vendôme, by charter dated 1092. 1
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