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In page Louis XI:

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Finally, in August 1456, Charles sent an army to Dauphiné under the command of Antoine de Chabannes. Louis fled to Burgundy, where he was granted refuge by Duke Philip the Good and settled in the castle of Genappe.[13] King Charles was furious when Philip refused to hand over Louis and warned the duke that he was "giving shelter to a fox who will eat his chickens."[citation needed]