Gwenhwyfar "Gwenhwyfar, the Welsh Goddess, is believed to have existed as long as there has been surf to pound against rocky shores. Praised for her wise judgement, it was prophesied that no man could rule Wales without her by his side." She is also known as Guinevere, or Gueneva. Her name means "White Shadow" or "White One" which is another name for a Fairy Goddess. - Wiccan Moonsong
Macha is an Irish war Goddess, strongly linked to the land. Several Goddesses or heroines bear Her name, but She is generally thought of as one aspect of the triple death Goddess the Mórrígan ("Great Queen" or "Phantom Queen"), consisting of Macha "Raven," Badb "Scald Crow" or "Boiling," and Nemain "Battle Fury." Macha is associated with both horses and crows.