Battle of Byzantium

Battle of Byzantium (Byzantion)
Part of the Second War of the Diadochi
Date317 BC
Location
near Byzantium
(modern-day Istanbul, Turkey)
40°12′N 26°24′E / 40.2°N 26.4°E / 40.2; 26.4
Result Antigonid victory
Belligerents
Enemies of Polyperchon Supporters of Polyperchon
Commanders and leaders
Antigonos
Nikanor
Kleitos 
Strength

First battle:
Diod. 100+ ships
Poly. 130 ships


Second battle:
The sea assault: 60 ships
The land assault: a large force of archers, slingers and peltasts

First battle:
slightly larger


Second battle:
Unknown (Cleitus's entire army and fleet)
Casualties and losses
Unknown Cleitus's entire force captured or killed

The Battle of Byzantium (Byzantion) was a 317 BC engagement between the generals Antigonus Monopthalmus and Cleitus the White, during the Second War of the Diadochi. Fought over the course of two days, near Byzantium at the Hellespont, it resulted in a stunning Antigonid victory.