 It was first reformed in the 9th century by abbot Frotaire, later bishop of Toul.In the 10th century Saint Gauzelin (bishop 922 -962), previously at Fleury Abbey, introduced from there the Gorze Reform, implemented by a Fleury monk, Archambaut, in 934, and reinforced between 942 and 973 by his successor Humbert, previously a monk at Gorze Abbey and Vanne Abbey.St.