Triballian

The Triballi (Greek: Τριβαλλοί) were an ancient tribe whose dominion was around the plains of modern southern Serbia and western Bulgaria, at the Angrus and Brongus (the South and West Morava) and the Iskar River, roughly centered where Serbia and Bulgaria are joined.

The Triballi were a Thracian tribe that received influences from Celts, Scythians and Illyrians.

In 424 BC, they were attacked by Sitalkes, king of the Odrysae, who was defeated and lost his life in the engagement. They were pushed to the east by the invading Autariatae, an Illyrian tribe; the date of this event is uncertain.

In 376 BC, a large band of Triballi under King Hales crossed Mount Haemus and advanced as far as Abdera; they had backing from Maroneia and were preparing to besiege the city when Chabrias appeared off the coast, with the Athenian fleet, and organized a reconciliation.

In 339 BC, when Philip II of Macedon was returning from his expedition against the Scythians, the Triballi refused to allow him to pass the Haemus unless they received a share of the booty. Hostilities took place, in which Philip was defeated and wounded by a spear in his right thigh, but the Triballi appear to have been subsequently subdued by him.

After the death of Philip, Alexander the Great passed through the lands of the Odrysians in 335-334 BC, crossed the Haemus ranges and after three encounters (Battle of Haemus, Battle at Lyginus river, Battle at Peuce Island) defeated and drove the Triballians to the junction of the Lyginus at the Danube. 3,000 Triballi were killed, the rest fled. Their king Syrmus (eponymous to Roman Sirmium) took refuge on the Danubian island of Peukê, where most of the remnants of the defeated Thracians were exiled. The successful Macedonian attacks terrorized the tribes around the Danube; the autonomous Thracian tribes sent tributes for peace, Alexander was satisfied with his operations and accepted peace because of his greater wars in Asia.

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