Proper noun
Igraine
(Arthurian legend) The mother of King Arthur.
Along the way, she meets a young mercenary named Arthur (more commonly known as King Arthur in other retellings of Arthurian legend), and Sister Igraine, who becomes Nimue's right-hand woman. Source: Internet
If Lady Lunete was the previous king's second wife, or if that king had an affair with Igraine, then Arthur's mother may have been the product of that relationship. Source: Internet
Instead, Igraine is unable to conceive and Uther turns to the dark magic of a sorceress named Nimueh to bear them a child. Source: Internet