After the outbreak of the Wars of the Diadochi, Seleucus initially supported Perdiccas, the regent of Alexander's empire. However, Perdiccas proved inept, and Selecus joined in the plot to assassinate him in 321 or 320 BCE. During a brief peace, Selecus became Satrap of Babylon, but was driven out by Antigonus I Monophthalmus when fighting resumed in 320 BCE. Seleucus retook Babylon in 312 BCE. For the next thirty years, Seleucus reconquered and ruled the eastern half of Alexander's former empire.
At the time of his death, Seleucus was the last diadochus. He'd played a role in the defeat of Antigonus 301 BCE and Lysimachus in 281 BCE. Ptolemy I of Egypt died in 282 BCE, the year before Seleucus' death. Seleucus' himself was assassinated in 281 BCE as he prepared to conquered Thrace and Macedon. He was killed by Ptolemy Ceraunus, the son of Ptolemy I, who'd taken refuge with Seleucus.
Seleucus in Hellenic TradersEdit
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| Regnal titles|
Independence from Macedon under Alexander IV, King of Asia
| Succeeded by|
Antiochus I Soter