Brocéliande is a place of legend due to its uncertain location, unusual weather, and its ties with Arthurian mythology, most notably the tomb of the legendary figure of Merlin.Lupack, Alan. The Oxford guide to Arthurian Literature and Legend, (New York, NY: Oxford University Press USA, 2007), page 437. According to these accounts, the forest sheltered Morgan's magical Vale of No Return, the faery fountain of Barenton, and the place of Merlin's retirement, imprisonment, or death.
