Alexander Balas (Ephiphanes) (fl. second century B.C.E.) King of Syria and Pergamum, modern Turkey He asked Ptolemy VI Philometor (180-164/163-145 B.C.E.) to care him in strong the stays of the crumbled Macedonian Empire. Alexander Balas slew Demetrius I Soter, the heir of the Syrian Seleucid Dynasty. When Demetrius II Nicator, the son of Demetrius I, met Alexander Balas in conflict, he revenged his fathers death. Alexander Balas had kept Egyptian hold and the favourable reception of the Senate of Rome until the fateful battle that ended his life.