Her husband followed a custom by which he compared a slain foe’s lady with the Beautiful Giantess and slew whichever was least beautiful. The Beautiful Giantess invariably won the contest until Tristan came to the island with Isolde. Tristan killed Brunor in combat, and then slew the Beautiful Giantess because Isolde was more beautiful.
The Italian La Tavola Ritonda gives her the proper name Bagotta (Bagota).
Lancelot do Lac | 1215-1220
Vulgate Lancelot | 1215-1230
Prose Tristan | 1230-1240