Blancemore, Blancemorne, Brangemore
A sorceress who built the Chapel of the Black Hand. Her son Espignogrés (Espinogres) murdered her and buried her beneath the chapel’s altar.
The chapel became inhabited by a demon that slew many knights until it was vanquished by Perceval.
Source
Third Continuation of Chrétien’s Perceval | Manessier, c. 1230
