Odrysian kingdom

Union of Thracian tribes and kingdoms (5th century BC to 3rd century BC)

The Odrysian kingdom (Ancient Greek: Βασίλειον Ὀδρυσῶν) was an ancient Thracian state that thrived between the early 5th century BC and the early 3rd / late 1st century BC. Located in present-day Bulgaria, southeastern Romania (Northern Dobruja), northern Greece and European Turkey, it was a tribal amalgam dominated by the Odrysians that was the first large political entity to develop in the eastern Balkans. Before the foundation of Seuthopolis in the late 4th century it had no fixed capital. The Odrysian kingdom was founded by king Teres I, exploiting the collapse of the Persian presence in Europe due to failed invasion of Greece in 480–79.

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