Blasine (Elaine)

Apart from Morgawse (Morgause), the mother of Gawain, and Morgan le Fay, the Vulgate Merlin (c. 1240) introduced a third daughter of Igraine. She was called Blasine, whom Sir Thomas Malory named as Elaine in his narrative Le Morte d'Arthur (1469). Blasine or Elaine was the wife of King Neutres (Nentres) of Garlot and the mother of Galescalain (Galeshin), the Duke of Clarence.

Her name was merely mentioned in Le Morte d'Arthur as being a half-sister to Arthur and married to Nentres. The French account of the Vulgate Merlin varied depending on the manuscripts. One manuscript called the Micha text doesn't mention her at all, so Arthur had only two sisters. However, in a different text by Sommer, it mentioned three half-sisters with Blasine being the third (see chapter 4, though her name doesn't appear until chapter 9 of the Vulgate Merlin).

In this chapter 9, her son Galeshin persuaded Blasine to reveal if Arthur was really her brother and his uncle or not. Blasine couldn't deny it. Galeshin revealed his intention that he preferred to be knighted by his uncle (Arthur) rather than from his own father, who was currently at war with both Arthur and the Saxon invaders. Likewise, his cousins Gawain (and his brothers) and Yvain also joined him to take services with Arthur.