Raolais of Estremores

The Green Knight, Red Knight of Estremores
Raolais le Vermeil Chevalier d’Estremores

Lord of Estremores, brother of Maduc, and uncle of Plarés. He was called the Green Knight (or Red Knight of Estremores).

Raolais was an enemy of Arthur and, consequently, Arthur invaded his lands. Plarés was killed in the fighting. The war was eventually decided in a single combat between Raolais and Gawain.

Gawain was victorious, and Raolais became a Knight of the Round Table, joining Arthur’s war against the Saxons. Maduc, disgusted with Raolais’s fealty to Arthur, became hostile to his brother.

He was killed by Galeshin.

See also
Adragain | The Legend of King Arthur