He was in 1069 one of the leaders of Breton forces on the Norman side, fighting against the remaining forces that had been loyal to Harold II of EnglandE. M. R. Ditmas, Reappraisal of Geoffrey of Monmouth's Allusions to Cornwall, Speculum, Vol. 48, No. 3 (Jul., 1973), pp. 510-524. He was Lord of Totnes, and holder of many manors in south-west England, at the time of the Domesday Survey (1086)For example Clawton, Broadwood Kelly, Bridford, Cornworthy.. He was however dispossessed or pushed out of Totnes shortly afterward. According to Frank BarlowWilliam Rufus (1983), p. 171. William II of England
replaced the Breton Judhel, whom he expelled from Totnes at the beginning of his reign for an unknown reason, with his favourite, Roger (I) of Nonant.