In Wolfram von Eschenbach's Parzival, the Queen of Wales, Anjou, and Norgales. The king of Anjou, Gahmuret, won her in a jousting tournament. She is the mother of Parzival, grandmother of Titurel, and the sister of Anfortas, Trevrizent, Schoysiane, and Repanse de Schoye.
Herzeloyde's name does not appear prior to Wolfram.
- Lacy, Norris J., ed. (1996). The New Arthurian Encyclopedia. New York: Garland.