Stara Zagora is a city in Bulgaria, and the administrative capital of the homonymous Stara Zagora Province and municipality. Its located in the Upper Thracian Plain, being near the cities of Kazanlak, Plovdiv, Sliven. Its population is around 158,563, making it the sixth largest city, just below Ruse and above Pleven.
The city had a period of different names, mainly Beroe, Borui, Irenepolis, Eski Zagra, Augusta Traiana, etc.
Earliest traces of civilisation date back to the 7th millenium B.C. Some scholars believe that the ancient Thracian Beroe was located there.
Wikipedia https://en.wikipedia.org/wiki/Stara_Zagora
Official Website https://starazagora.bg/
Coordinates 42°25'29.32" N 25°37'32.692" E