Hartberg is a city in Styria, Austria, the capital of the Hartberg-Fürstenfeld District. As of 2014, it has a population of 6,449 in an area of 21.58 km2. About 68 km up the A2 is the large city of Graz.
This town has a long and rich history. A settlement was located here in the Neolithic ages. One of the most important, prehistoric settlements of Styria developed on "Ringkogel" in the 3rd century BC. A massive protective wall surrounded it. Only two towers remain of the 7-8 metre high and 1500 metre long wall.. The first mention of Hartberg as a city was in a 1286 document. During the 15th century it was conquered by King Matthias Corvinus of Hungary. A huge fire destroyed the town up to a few houses, but the population has been continually on the rise since then.
Wikipedia https://en.wikipedia.org/wiki/Hartberg
Coordinates 47°16'51.373" N 15°58'9.036" E