What if the Cannibal was the dragon of Aurion, the self proclaimed Emperor of Valyria?
Could be why the inhabitants of Dragonstone say that heâs been there since before the conquest since Aurion died in 102BC.
This however would make him older than Balerion by a couple of decades by the time of the dance and unlike Balerion, Cannibal isnât showing any signs of super old age when people do spot him.
My personal theory is that he might be one of Balerions own hatchlings since dragons are neither male or female and he even looks abit like him being pure black with the only other colours being the eyes, with his being green instead of Balerions red.
Any other theories?