358 - 281 BC
Nicator Seleucus I, was king of Babylon and Syria and also the founder of the Seleucid empire and dynasty.
Seleucus was an officer in the army of Alexander the Great. After Alexander's
death he became governor of Babylon and allied himself with Ptolemy, the
Macedonian governor of Egypt, to prevent Antigonius from succeeding to
Alexander's throne. He defeated Antigonus in 301 BC, and transferred his
capital to Antioch.