The figure from Arthurian legend often depicted as the lady of the lake is Vivienne or Lady of the Lake. She plays a significant role in the legends surrounding King Arthur and the Knights of the Round Table. Known for giving Arthur his sword, Excalibur, she embodies the mystical and enchanting aspects of the legends. Her character symbolizes both nurturing and the enigmatic powers of nature, making her a vital link in the Arthurian narratives.