NIGHTBRINGER | The Arthurian Encyclopedia

Grandoine of the Distant Isle

Grandoines

A count who was one of the four “chevalier compaignons” of Lord Formis Darmes (Formis of Arms), the guardian whom Merlin had appointed to guard l’Isle Tornoiant (the Turning Isle).

Yder defeated him when Arthur and his knights fought Formis’s knights.


Source
Le Livre d’Artus | Early 13th century