This may be Dame Ragnell after she has been transformed from the hag
to a beautiful princess.
Dame Ragnell is the hag who saves the life of King Arthur by telling him
the answer to the riddle of "What is it that women most desire?" In return for her
answer, she weds Sir Gawain, who breaks the enchantment of her wicked stepmother.
She is described as an ugly creature that no one has ever seen before. However, because
Sir Gawain grants her sovereignty, she is transformed from an ugly monster to the most
beautiful princess that his eyes have ever seen.