Dudoc was a native of Lorraine or of Saxony. He was a priest for Cnut before being named Bishop of Wells by Cnut in 1033. He was consecrated 11 June 1033.
Dudoc died on 18 January 1060. He left his estates and vestments to his church, but the will was invalidated by King Edward, partly at the request of Archbishop Stigand, who received one of the estates instead.
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