Xerxes I of Persia, also known as Xerxes the Great, was the fourth Zoroastrian king of kings of the Achamenid Empire.
The Templars aided Xerxes in his suppressions of revolts in Egypt and Babylon, as well as his attempted conquest of Greece. In 465 BCE, Xerxes was killed by the Assassin Darius, marking the first recorded use of the Hidden Blade.
Xerxes I the Great (519–465 BC) became the Shahanshah (King of Kings) of the Achaemenid Persian Empire in 485 BC. Xerxes is the Greek form of the Persian Khashayar; he is also known in popular culture by his Hebrew name Ahasuerus. Xerxes sought to bring the various Greek city-states to heel, launching an invasion in 480 BC. Despite initially gaining the upper-hand, Xerxes' forces were eventually driven back by the Greeks, and Xerxes returned to Persia. He was murdered in 465 BC by one of his own generals.