The Battle of Ipsus was fought between some of the Diadochi in 301 BC near the town of Ipsus in Phrygia. Antigonus I Monophthalmus, the Macedonian ruler of large parts of Asia, and his son Demetrius were pitted against the coalition of three other successors of Alexander: Cassander, ruler of Macedon; Lysimachus, ruler of Thrace; and Seleucus I Nicator, ruler of Babylonia and Persia. Only one of these leaders, Lysimachus, had actually been one of Alexander's somatophylakes.
The Battle of Ipsus in 301 BC. 19th century engraving.
Demetrius, son of Antigonus
Lysimachus, one of the victors of Ipsus.
Bust of Seleucus, whose elephants decided the battle
The Diadochi were the rival generals, families, and friends of Alexander the Great who fought for control over his empire after his death in 323 BC. The Wars of the Diadochi mark the beginning of the Hellenistic period from the Mediterranean Sea to the Indus River Valley.
Bust of Seleucus I Nicator ("Victor"; c. 358 – 281 BC), the last of the original Diadochi.
Alexander the Great and Craterus in a lion hunt, mosaic from Pella, Greece, late 4th century BC
Paintings of ancient Macedonian soldiers, arms, and armaments, from the tomb of Agios Athanasios, Thessaloniki in Greece, 4th century BC
Hellenistic kingdoms as they existed in 240 BC, eight decades after the death of Alexander the Great