 When Vikings threatened the area, a local count named Even (a legendary figure, for whom the commune of Lesneven is named) visited Goulven and asked him to pray for him and his men; they were victorious in fighting off the invaders.In return, Goulven asked Even to give him some land to start a monastery on, and Even consented.As Goulven walked along the boundaries of the area, the land was miraculously raised on either side of him, creating a boundary that no one could violate; the area was called "Menehi Sant Goulven", and became abundantly fertile.