|align=right| 2 || '''Antiochus Soter'''|| align=right| 281 BC ||align=right| 20 || align=right | Half-Persian; called ''Soter'' (savior) for defeating [[Gauls]] in [[Asia Minor]] after 278 BC. | |align=right| 2 || '''Antiochus Soter'''|| align=right| 281 BC ||align=right| 20 || align=right | Half-Persian; called ''Soter'' (savior) for defeating [[Gauls]] in [[Asia Minor]] after 278 BC. |