Lancelot and Guinevere are key figures in Arthurian legend, representing the themes of love and romance, particularly in the context of tragic love affairs. Their relationship is marked by passion and betrayal, as Lancelot, the greatest knight of King Arthur's Round Table, falls in love with Guinevere, Arthur's queen. This forbidden romance not only highlights the complexities of love but also sets off a series of events that lead to the downfall of Camelot, symbolizing how love can lead to both personal and societal chaos.