Green Knight of the story turns him green. He tests Moses three times by doing seemingly evil acts, which are eventually revealed to be noble deeds to prevent greater evils or reveal great goods. Both the Arthurian Green Knight and Al-Khidr serve as teachers to holy and upright men (Gawain/Moses), who thrice tested their faith and obedience. It has been suggested that the character of the Green Knight may be a literary descendant of Al-Khidr, brought to Europe with the Crusaders and blended with Celtic and Arthurian imagery. The beheading game appears in a number of tales, the earliest being the Middle
Black Knight (Arthurian legend) Black Knight (Arthurian legend) The Black Knight appears in various forms in Arthurian legend. A supernatural Black Knight is summoned by Sir Calogrenant (Cynon ap Clydno in Welsh mythology) in the tale of "Yvain, the Knight of the Lion". The Black Knight bests Calogrenant, but the Black Knight is later killed by Ywain (Owain mab Urien) when he attempts to complete the quest that Calogrenant failed. Perhaps the first mentioned of a Black Knight by name is in Raoul de Houdenc's "La Vengeance Raguidel" (early 13th century), where "Noir Chevalier" is first mentioned on line 633. The eponymous protagonist of