Overview
Antigonus II Gonatas (, ; – 239 BC) was a Macedonian Greek ruler who solidified the position of the Antigonid dynasty in Macedon after a long period defined by anarchy and chaos and acquired fame for his victory over the Gauls who had invaded the Balkans.
Birth and family
Antigonus Gonatas was born around 320 BC. The origin of the Hellenistic nickname Gonatas is unknown. He was descended from the Diadochi (the successors of Alexander the Great) on both his father's and mother's side. His father was Demetrius Poliorcetes, himself the son of Antigonus I Monophthalmus, who then controlled much of Asia. His mother was Phila, the daughter of Antipater, who had controlled Macedonia and the rest of Greece since 334 BC and was recognized as regent of the empire, which in theory remained united. In the year of Antigonus Gonatas' birth, however, Antipater died, leading to further struggles for territory and dominance.
The careers of Antigonus's grandfather [Antigonus Monophthalmus] and father showed great swings in fortune. After coming closer than anyone to reuniting the empire of Alexander, Antigonus Monophthalmus was defeated and killed in the great Battle of Ipsus in 301 BC and the territory he formerly controlled was divided among his enemies, Cassander, Ptolemy, Lysimachus, and Seleucus.
Demetrius’ general
The fate of Antigonus Gonatas, now 18, was closely tied with that of his father Demetrius, who escaped from the battle with 9,000 troops. Jealousy among the victors eventually allowed Demetrius to regain part of the power his father had lost. He conquered Athens and in 294 BC he seized the throne of Macedonia from Alexander, the son of Cassander.
From Wikipedia (CC BY-SA 4.0).