A young man knighted by Arthur.
His father, the Red Knight of the Forest of Shadows, and his uncle, Cahot the Red, were both killed by Perceval. For this, Clamadoz sought revenge.
Encountering Perceval at the Queen of the Pavilions’ tournament, Clamadoz challenged him to a duel. Before this fight could take place, however, Meliot of Logres arrived, furious because Clamadoz had slain his pet lion in the Field of the Lion. Clamadoz was mortally wounded in the battle against Meliot, and never was able to seek his revenge.
Source
Perlesvaus | Early 13th century