Wikipedia
Bessus
For the Christian saint, see Saint Bessus.
Bessus, also known as Artaxerxes V (died summer 329 BC), was a prominent Persian Satrap of Bactria in Persia, and later self-proclaimed King of Kings of Persia. According to classical sources, he killed his predecessor and relative, Darius III, after the Persian army had been defeated by Alexander the Great. He was executed by Alexander the Great in 329 BC.