Book XIII. tells of the goodly feast that was holden in Château

Merveil, and of the wedding of Gawain and Orgelusé. How Gawain's squire did his bidding; and how King Arthur and Queen Guinevere pledged themselves to ride to Ioflanz to behold the conflict between Gawain and Gramoflanz.

How Gawain fared in Château Merveil; and how Arnivé told him the history of Klingsor, and of his unlawful love.

Of the coming of King Arthur and his host; how they fought before Logrois; and came with great pomp to the plain of Ioflanz.

How Gawain and the dwellers in Château Merveil followed to the plain; of the goodly camp prepared for them; of the wonder of the court and Kay's jealousy; and how the four queens were made known to King Arthur.