The family name of Antiochus V. He was a king of the Seleucid Empire (a kingdom that ruled parts of the Middle East and Asia from about 312 BC to 63 BC). The name Eupator means “son of a noble father.” See Antiochus V.
Bible dictionary
Eupator
Adapted by Mission Mutual (Aquifer Open Bible Dictionary) from Tyndale Open Bible Dictionary © 2023 Tyndale House Publishers. CC BY-SA 4.0. About the sources