Marrien

A devil-spawned centaur with the head of a dog.

It served the evil King Roaz of Glois, and it attacked Sir Wigalois (Gawain’s son) when he came to Glois to kill Roaz. Marrien carried a kettle full of magical fire, which could not be quenched, and which he hurled at Wigalois. Wigalois’ surcoat and horse were burned away, but he found that the fire could not burn through his magical armor. He advanced, gravely wounded Marrien, and used Marrien’s blood to put out the fire. Marrien, meanwhile, fled into a swamp full of poisonous fog and died.