The location of a hermitage visited by Lancelot and Perceval during the Grail Quest.
Lancelot had some disturbing dreams, signifying the sin of his affair with Guinevere, in which he was wounded in the thigh. Perceval was able to cure the wound. Lancelot made a full confession of his sins to Perceval and the hermit.
Source
Post-Vulgate Queste del Saint Graal | 1230-1240