Andromachus

Andromachus (, lived 3rd century BC) was a Seleucid Greek nobleman. Andromachus was the son of Achaeus, a son of Seleucus I Nicator (the founder of the Seleucid Empire), and a wealthy nobleman who owned estates in Anatolia. His family was influential in Anatolia and had strong royal connections. Andromachus had three siblings; one brother: Alexander and three sisters: Antiochis, Laodice I and Laodice II. Andromachus was the father of Achaeus and his sister Laodice II was married to the Seleucid King Seleucus II Callinicus. As a result of this marriage, the future Seleucid kings, Seleucus III Ceraunus and Antiochus III the Great, were his nephews.

During the course of a war between the Seleucids and the Ptolemies, the Egyptian king Ptolemy III Euergetes took Andromachus prisoner; and when Ptolemy III died in 221 BC, Andromachus was still a prisoner in Egypt. Since Achaeus was anxious to secure his father's release,