William was in attendance with John in Normandy at the time of Arthur of Brittany's imprisonment and it was alleged that Arthur suffered the same fate as the Welsh princes at William's hand, although this has never been proven.
William was in attendance with John in Normandy at the time of Arthur of Brittany's imprisonment, followed by his disappearance in 1203. It was alleged that Arthur suffered the same fate as the Welsh princes at William's hand, although this has never been proven.