Hanzhong is a prefecture-level city in the southwest of Shaanxi province, China, bordering the provinces of Sichuan to the south and Gansu to the west.
The founder of the Han dynasty, Liu Bang, was once enfeoffed as the king of the Hanzhong region after overthrowing the Qin dynasty. During the Chu-Han contention, Liu Bang shortened his title to the King of Han, and later used it as the name of his imperial dynasty. In this way, Hanzhong was responsible for the naming of the Han dynasty, which was later hailed as the first golden age in imperial Chinese history and lends its name to the principal ethnic group in China.
Hanzhong is located at the modern headwater of the Han River, the largest tributary of the Yangtze River. Hanzhong city covers 27,246 square kilometres and is centered around the Hantai District.
Wikipedia https://en.wikipedia.org/wiki/Hanzhong
Coordinates 33°4'8.576" N 107°1'8" E