Butocostiaus

Botincoutiaus, Boutincostiaus, Buticostiaus

The lord of Finecoce and one of four Irish robber knights defeated by Lancelot on his way to Rigomer castle.

Lancelot sent him to Guenevere as a prisoner.


Source
Les Merveilles de Rigomer | Jehan, mid to late 13th century