Two entries with the name Blancheland.
The Middle English Sir Gawain and the Carl of Carlisle names the Lady of Blancheland, a fairy, as the mother of “The Knyght of Armus Grene” by Sir Ironside.
Green Knight | The Legend of King Arthur
Fairies | Myths and Legends
Syre Gawene and the Carle of Carlyle | c. 1400
Latin: Alba Landa
In Cornwall there is a meadow which is called Blancheland.
Mark’s Hunting Lodge | The Legend of King Arthur