Are both  Xingyi, Guizhou and Gaizhou in the same chinese province ?
Xingyi, Guizhou Xingyi () is a county-level city in the Qianxinan Buyei and Miao Autonomous Prefecture of Guizhou Province in southern China.
Jiaozhou (region) Jiaozhou (; Vietnamese: "Giao Châu" ) was an imperial Chinese province under the Han and Jin dynasties. Under the Han, the area included Liangguang and northern Vietnam but Guangdong was separated to form the province of Guangzhou by Sun Quan following the death of Shi Xie.