Male Achaeus of Syria I Click to view Achaeus of Syria I in the family tree Click to view Achaeus of Syria I in the family tree in SVG format

Achaeus' father was Seleucus I Nicator Babylon and his mother was Apama II Baktria.  His paternal grandparents were Antiochus I Soter Syria and Laodike; his maternal grandparents were  Spitamana Baktria and  Miss Baktria.  He was the youngest of two children.  He had a brother named Antiochus I.

Achaeus' family with Aesopia of Macedonia

They had a son named Andromachus.