Darius

Artabanus, better known as Darius, was the Persian assassin of King Xerxes I of Persia.

Considered to be one of the very first proto-Assassins, active several centuries before the order's formal establishment, Darius fought to ensure Persia would forever remain free of tyranny. His assassination of Xerxes I was the first recorded usage of the Hidden Blade, which went on to become the iconic weapon of the Assassin Brotherhood.