[3] Her siblings included Stratonice of Macedon and the Seleucid King Antiochus II Theos.
Around 275 BC, Apama married her maternal third cousin the Greek King Magas of Cyrene.
In Cyrenaica, there is a surviving honorific inscription dedicated to Apama, as a monarch and wife of Magas.
After 270 BC, Apama bore Magas a daughter called Berenice II,[9] who would be their only known child.
[10] In 250 BC, Magas and Apama had betrothed Berenice II to her paternal cousin and Ptolemaic prince Ptolemy III Euergetes.
The poem Coma Berenices by Greek poet Callimachus (lost, but known in a Latin translation or paraphrase by Catullus), apparently refers to her supporters killing of Demetrius: "Let me remind you how stout-hearted you were even as a young girl: have you forgotten the brave deed by which you gained a royal marriage?"