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In page Norbert of Xanten:

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In Paris he would have witnessed the Canons of St. Victor, who had adopted the ascetic ideals of William of Champagne. At Clairvaux and Citeaux he would have seen the Cistercian reforms among the monks. He also became acquainted with the Cistercian administrative system that created an international federation of monasteries with fair amount of centralized power, though local houses had a certain amount of independence. These reforms, written up in their “Charter of Charity” would affect him significantly in his own future work.[1]