An evil castle. Its king was Percevalís maternal uncle, but the kingís family disavowed him because of his evil ways.
The king fled from Perceval at the Castle of the Galleys. He seized the Grail Castle upon the Fisher Kingís death, but Perceval re-conquered it. Beholding his own defeat, the King of the Castle Mortal threw himself off the Grail Castleís battlements to his death.