French, 10th – 11th century, male.
Born 10th century, in Vercelli, into a Swedish family; died 1031, in Fécamp.
Guillaume was the abbot of Ste-Bénigne, Dijon. In 1001 Guillaume drew the plans of the Ste-Bénigne church, of which now only the porch exists. He had many pupils and built, either with or without their help, the churches of Vézeley, Vermenton, Avallon, and the Benedictine church of Nantua....