A castle visited by Gawain in Heinrich von dem Türlin’s Diu Crône.
In a previous tournament, Gawain had killed one of Karamphi’s princes, named Dahamorth. In revenge, Dahamorht’s brother Angaras attacked him. The lord of Karamphi stopped the fight, but Gawain had to embark on the Grail Quest as a condition of the truce.
In Wolfram’s Parzival, these events occur at Ascalun.
Source
Diu Crône | Heinrich von dem Türlin, c. 1230