BBCnews is carrying this summary of the discovery of a treasure-filled tomb in Bulgaria at least 2400 years old. The remains are probably that of a Thracian king who died suddenly, and young.
If I'm remembering my history right (no promises there), that puts him right around the time of the of the Peloponnesian war (which I managed to spell correctly the first time when I did a google search!) I.e. the Parthenon was sparkling-new when this guy was around, and, while the Roman Republic existed, the city itself was just a collection of brick houses on a hilly bit of ground next to a river.