Parts five and six of Lancelot move nearer to the beginning of the Grail quest; Lancelot comes to the Grail castle, and is deceived into sleeping with Elaine, thinking that she is Guinevere; Galahad is born of their union. Arthur's wars with Rome are retold from the original chronicle versions, and Lancelot plays a major part in the king's victory. Lancelot is deceived again when Elaine comes to Arthur's court, and when Guinevere realises that he has slept with Elaine; she banishes him from court, and he goes mad with grief. The romance ends with Lancelot's return to sanity and the arrival of Galahad at court.