Battle of Erigon Valley

Battle of Erigon Valley
Part of the Expansion of Macedonia under Philip II

Map of the territory of Philip II of Macedon.
Date358 BC
Location
Erigon valley, Illyria (present-day North Macedonia)
Result Macedonian victory
Belligerents
Macedonia Illyrian kingdom
Commanders and leaders
Philip II Bardylis 
Strength
10,000 infantry
600 cavalry
10,000 infantry
500 cavalry
Casualties and losses
approx. 300–500 killed approx. 2,000–3,000 killed

The Battle of Erigon Valley or the Battle of Lyncus Plain took place in 358 BC between the Illyrians under Bardylis and the Macedonians under Philip II. After forty years on continuous Illyrian dominance and expansion under Bardylis, Philip II after marrying Audata, an Illyrian princess, marched into Illyria and confronted the Illyrian tribesmen. The battle described by Diodorus and Frontinus shows the power and excellence of both the Macedonian and Illyrian armies.