In Heinrich von dem Türlin’s Diu Crône, a castle ruled by Lord Leigamar.
Leigamar threw a tournament at Sorgarda, the winner of which would have the honor of marrying his daughter, Flursenesephin. Many knights came to the tournament, including Flursenesephin’s favorite, Fiers of Arramis.
Flursenesephin’s sister Quebeleplus entreated Gawain to defeat Fiers, however, and Gawain ended up winning the tournament. Since he had no desire to marry, he deferred the honor to his companion, Sir Quoikos.
A similar tournament occurs at the city of Bearosche in Wolfram’s Parzival.
Source
Diu Crône | Heinrich von dem Türlin, c. 1230