Wenilo[a] (died 865) was the archbishop of Sens[b] from 836 or 837. Prior to becoming bishop, Wenilo was a palatine chaplain. As bishop, he was one of the leading men in Aquitaine and crowned Charles the Bald king in 848, definitively uniting Aquitaine with West Francia. In 858, he supported the East Frankish invasion and was denounced as a traitor by the king. They reconciled the next year, and Wenilo retained his office until his death. Nevertheless, he passed into legend as Ganelon, the archvillain of the Matter of France, his name a byword for "traitor".
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