Gauzbert, Count of Maine
He is recorded for the first time in 839 in a charter of his brother Count Rorgon I of Maine. Rorgon died shortly afterwards, leaving very young children, and Gauzbert took over the government, organising the defense the County of Maine against the Vikings. He also fought against Lambert II, Count of Nantes. In 852 he killed Lambert in an ambush.
In 853, Gauzbert's overlord Charles the Bald accused him of making an alliance with the Bretons, who were in revolt against him, and, according to some reports, had him executed. The execution is said to have incited other Frankish grandees to revolt and appeal for help to Charles' half-brother and rival Louis the German. However, according to the Chronique de Saint-Maixent, Gauzbert was ambushed and killed by citizens of Nantes in revenge for the death of Lambert.
It is not known whether he was married or had children. He was succeeded by his nephew Rorgon II of Maine.
- Chronique de Saint-Maixent "Et l'année suivante, Lambert, comtes de Nantes, est tué dans une guerre par Gausbert, comte du Maine"
- Chronique de Saint-Maixent, p.59 "Gaubert, comte du Maine tomba dans une embuscade des Nantais et fut tué"