Caesar

Hannibal Lecter was a conqueror, rising among the people to rule the greatest empire in history. His name evoked fear, respect, and envy because at his feet stood an angel of death. A being who held the heads of the emperor's enemies in his hands and saw the worst fears and secrets of every man before him with just a glance.
The creature with blue eyes and hair like a cherub that he found during another battle marked the beginning of Hannibal's story as a beast, a conqueror of the universe, with a messenger of death at his feet.

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Or, where Hannibal is a Roman with conquest in his blood, and Will is an unusual Celtic.