Alexandros IV of Macedon

Alexander IV (Greek: ; 323/322– 309 BC), sometimes erroneously called Aegus in modern times, was the son of Alexander the Great (Alexander III of Macedon) and Princess Roxana of Bactria. Birth Alexander IV was the son of Alexander the Great (a Macedonian Greek) and Alexander's wife Roxana (a Sogdian). He was the grandson of Philip II of Macedon. Because Roxana was pregnant when Alexander the Great died on 11 June 323 BC and the sex of the baby was unknown, there was dissension in the Macedonian army regarding the order of succession. While the infantry supported Alexander the Great's half-brother Philip III (who had some unknown cognitive disability present throughout his life), the chiliarch Perdiccas, commander of the elite Companion cavalry, persuaded them to wait in the hope that Roxana's child would be male. The factions compromised, deciding that Perdiccas would rule the Empire as regent while Philip would reign, but only as a figurehead with no real power. If the child was male, then he would be king. Alexander IV was born in late 323 BC or early 322. Regents After a severe regency, military failure in Egypt, and mutiny in the army, Perdiccas was assassinated by his senior officers in May or June 321 or 320 BC (problems with Diodorus's chronology have made the year uncertain), after which Antipater was named as the new regent at the Partition of Triparadisus. He brought with him Roxana and the two kings to Macedon and gave up the pretence of ruling Alexander's Empire, leaving former provinces in Egypt and Asia under the control of the satraps. When Antipater died in 319 BC he left Polyperchon, a Macedonian general who had served under Philip II and Alexander the Great, as his successor, passing over his own son, Cassander. Civil war Cassander allied himself with Ptolemy Soter, Antigonus and Eurydice, the ambitious wife of king Philip Arrhidaeus, and declared war upon the Regency. Polyperchon was allied with Eumenes and Olympias.