While it has nothing to do with his name, Gulcasa seems to be in the tradition of...
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Despot Vuk. Despot Vuk was rumoured to be part dragon, and had a large red birthmark. He had wolves hair and breathed fire, and was generally considered unstoppable on the battlefield. He is in the tradition of Slavic werewolf kings (no, not guys who turn into wolves every moon, Slavic werewolves were just extra good at magic, and known for being able to turn into ANY animal, but particularly liked wolves) who are all bestial, savage warriors of great import, whose birth circumstances are incredible.