Nimue has an elder sister Orla. They both appear as children in a minor scene from the future in the novel Baptism of Fire. In that vignette, it was revealed that Nimue was known as "Squirt" as a child, due to her diminutive size.
One of her lovers was the Fisher King.
- Nimue is a name given to many female characters in the Matter of Britain literature. Nimue was the name of the "Lady of the Lake", who gave Excalibùr to King Arthur; the name of the woman who brought the dying king in Avalon; the name of the woman who took care of young Lancelot; the name of the sorceress who seduced and imprisoned Merlin. In all these cases, Nimue is doubtly a human but a mythological creature like a nymph or a nereid.
- Her name can be translated from Welsh language as "Nimue, daughter of Wledyr, son of Gwyn". There is interesting fact, Gwyn ap Nudd is the King of the Wild Hunt in Welsh mythology.
- Technically, this format doesn't follow traditional Welsh: "verch" is only used for daughters while "ap" for sons, such that it should be "Nimue verch Wledyr" without the "ap Gwyn". The latter part may have been added on as part of Andrzej Sapkowski's witcher lore.