Seleucus I (Seleucus the Victor) was a Macedonian officer of Alexander the Great and one of the Diadochi. In the Wars of the Diadochi that took place after Alexander's death, Seleucus established the Seleucid dynasty and the Seleucid Empire...
Antiochus III the Great (ruled 222–187 BC) was a Seleucid king and the 6th ruler of the Seleucid Empire. He ruled over the region of Syria and large parts of the rest of western Asia towards the end of the 3rd century BC. Rising to the thro...