Ganelon is a character from the medieval epic poem "The Song of Roland," which is part of the larger body of French literature. He is depicted as a traitor who betrays his step-nephew, Roland, by conspiring with the enemy, the Saracens. Ganelon's actions lead to a disastrous battle at Roncevaux Pass, where many knights are killed. In the story, Ganelon's betrayal is motivated by jealousy and a desire for revenge. His treachery highlights themes of loyalty and honor, which are central to the narrative. Ultimately, Ganelon faces severe consequences for his actions, reflecting the moral lessons of the tale.