Gwynenthell (aka Gwynenthel) is the royal city of Kal Torlin according to Beyond Shadowgate and Shadowgate 64 (and Shadowgate Saga: Raven, and further adapted in reboot series). It also appears as the capital city in Shadowgate Classic PC version (and the games based on that version). It was apparently the citadel where Aronde I ruled (or Otto in the Shadowgate Classic PC version).