Guang Prefecture (光州) was a prefecture of imperial China centered on modern Huangchuan County, Henan. It was created in the 6th century under the Liang dynasty and existed intermittently until 1913, after the establishment of the Republic. Geography The administrative region of Guangzhou in the Tang dynasty is in the border area between modern southeastern Henan and western Anhui (as well as northeastern Hubei). It probably includes parts of modern: Under the administration of Xinyang, Henan: Huangchuan County Guangshan County Xin County Shangcheng County Gushi County Under the administration of Lu'an, Anhui: Jinzhai County References Prefectures of the Sui dynasty Prefectures of the Tang dynasty Prefectures of Yang Wu Prefectures of Southern Tang Prefectures of Later Zhou Prefectures of the Song dynasty Prefectures of the Yuan dynasty Prefectures of the Ming dynasty Prefectures of the Qing dynasty Former prefectures in Henan Former prefectures in Anhui