A charter dated 1021 records that the bishop of Vannes restored rights to Redon abbey, witnessed by "…Alanus Cornugallensis comes et Guethenocus vicecomes et Gozolinus eius filius…".
Vicomte de Bretagne et de Rennes. "Eudo comes et uxor eius, Joscelinus vicecomes…Alfredus frater Alani vicecomitis…Hodierna soror Hugonis vicecomitis…" witnessed a charter dated to 1050 which recorded an agreement between "Gualterio eius preposito" and the abbess of Saint-Georges de Rennes. "Defuncto…Guethenoco…filius eius Goscelinus" donated property to the abbey of Redon, by charter dated [1066/82], witnessed by "filius eius Maenguis episcopus, et Rogerius et Eudo et alii filii eius".
The name of Joscelin's wife is not known. 1
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