A maiden who served Isolde.
Tristan’s brother-in-law Kahedins lusted after her. Isolde gave her to Kahedins for a night but gave Gymele a magical pillow that, once slipped under Kahedins’ head, caused him to fall asleep immediately, before he could take Gymele’s maidenhood.
Source
Tristrant | Eilhart von Oberge, 1170–1190