NIGHTBRINGER | The Arthurian Encyclopedia

Damoisele de la Blanche Nue

‘The lovely Maiden of the White Cloud’
la bele Damoisele de la Blanche Nuage

The Vulgate VII says Nascien’s mother was this maiden. It is uncertain which Nascien this is referred to though.

See also
Nascien | The Legend of King Arthur
Nascien d’Orberique | The Legend of King Arthur