"In the center of the story of King Arthur lies the love triangle between Arthur - Lancelot - Guinevere"
This statement is valid only in the novel of the French author, Chrétien de Troye (1140-1190). No ancient poetry of Wales, and no work cleric Geoffrey von Monmouth (about 1100-1154), and Wace's (approximately 1110 to 1171), does not recall the Guinevere`s adultery. Chrétien de Troye exposes in his short story, Lancelot, as he released Guinevere, who was kidnapped, and ends with her adultery. Chrétien also wrote the novels like Jwain, Knight's Lion, Perceval and the Grail King, and Erec and Emide and all topics revolve around Arthur's round table.