The forest near Cardigan, mentioned by Chrétien, where Arthur held his annual hunt for the white stag.
The thirteenth-century Lancelot do Lac says that a false report was circulated that Lancelot had been killed in the Forest; this report caused the death of Lancelot’s friend, Galehaut.
Another Forest of Adventures, also called Arroy, is mentioned by Malory.
Sources
Erec | Chrétien de Troyes, late 12th century
Lancelot do Lac | 1215-1220