Demetrius II of Macedon
| Demetrius | |
|---|---|
| King of Macedonia | |
| Reign | 239 to 229 BC |
| Predecessor | Antigonus II Gonatas |
| Successor | Antigonus III Doson |
| Born | 275 BC |
| Died | 229 BC |
| Spouse |
Stratonice of Macedon Nicaea of Corinth Phthia of Macedon Chryseis |
| Issue |
Apama III Philip V of Macedon |
| Dynasty | Antigonid dynasty |
| Father | Antigonus II Gonatas |
| Mother | Phila (daughter of Seleucus) |
Demetrius II Aetolicus (Greek: Δημήτριος ὁ Αἰτωλικός) son of Antigonus II Gonatas and Phila, reigned as king of Macedonia from the winter of 239 to 229 BC. He belonged to the Antigonid dynasty and was born in 275 BC.
He had already during his father's lifetime distinguished himself by defeating Alexander II of Epirus at Derdia and so saving Macedonia (c. 260 BC). There is a possibilitythat his father had already elevated him to position of power equal to his own before his death. If this had occurred it would be dated at 256 or 257 BC.
On his accession Demetrius had to face a coalition of enemies which included the two great leagues. Usually rivals, the Aetolian League and Achaean League, now became allies against the Macedonian power. He succeeded in dealing this coalition severe blows, wresting Boeotia from their alliance. The revolution in Epirus, which substituted a republican league for the monarchy, gravely weakened his position.
During his reign his kingdom extended to Euboea, Magnesia, Thessaly and its environs, excluding Dolopia and possibly Peparethos and Achaea Phthiotis.
In 236 BC, he invaded Boeotia, making the Boeotians submit immediately.
In 234 BC due to the Federal Republic replacing the monarchy in Epirus, which led to the events of 231 BC, Demetrius hired Agron for military aid against advancing Aetolians. His kingdom was not threatened by the Illyrian Ardiaei ruled by Agron despite them having gathered the greatest force in their history (around 231 BC), but Epirus needed some sort of force to deter them.
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