 In 1336, under the episcopacy of , renovated the cask that kept Goulven's body.In 1533, bishop removed an arm and gave it to the Goulven parish, and doubtlessly, according to Plaine, during this time many other unrecorded gifts of relics must have been made, because by 1743 only the head, divided in two parts, and a number of greater and smaller bones was left.The head disappeared during the French Revolution, but some larger bones were still in the Rennes Cathedral by 1889, and remained the center of Goulven's cult, whose celebration in the Rennes diocese culminates on 9 July.