A List of all known Warrior Women/Female Knights in Arthurian Myth (Pre-19th Century)
The Witches of Caer Loyw (Peredur)
Orddu the Witch (?) (Culhwch and Olwen)
Gwen Pendragon (?) (The Welsh Triads)
Marine and her companions (Wigalois)
Avenable/Grisandoles (Vulgate Cycle)
Silence (?) (Roman de Silence)
Pulzella Gaia (?) (Pulzella Gaia)
Morgan le Fay (?) (Libro di Galvano, Segurant Knight of the Dragon?)
Britomart (The Faerie Queene)
Angela (The Faerie Queene)
Radigund (The Faerie Queene)
Belphoebe (?) (The Faerie Queene)
Melora (Eachtra Mhelora agus Orlando)
Asteria (and possibly Andronia du Lac?) (Memorial das Proezas da Segunda Tavola Redonda)
Notes:
The list is tentative and subject to change. Check the OP to see updates.
Poor Gyneth couldn't make it
Question mark denotes textual ambiguity over whether the listed person counts: Gwen Pendragon is a complete unknown. Silence is ambiguously Arthurian. Pulzella Gaia and Morgan have magic involved and therefore unknown if they're legitimately trained warriors (They do physically fight at least). Asteria is described as princess of the Amazons of Sarmatia, with Andronia as her adopted daughter.
