|align=right| 1 || '''Seleucus [Nicator]'''|| align=right| 312 BC ||align=right| 31 || align=right |Awarded satrapy of [[Babylon]], 321 BC, regained in 312 BC; 301 BC [[Syria]] added to domain, founded [[Antioch]] same year. Assassinated 281 BC.<ref name=EB1911>"Seleucid Dynasty" (1911). Encyclopedia Britannica (New York: Encyclopedia Britannica), vol. 24, pp. 603-604.</ref> | |align=right| 1 || '''Seleucus [Nicator]'''|| align=right| 312 BC ||align=right| 31 || align=right |Awarded satrapy of [[Babylon]], 321 BC, regained in 312 BC; 301 BC [[Syria]] added to domain, founded [[Antioch]] same year. Assassinated 281 BC.<ref name=EB1911>"Seleucid Dynasty" (1911). Encyclopedia Britannica (New York: Encyclopedia Britannica), vol. 24, pp. 603-604.</ref> |