Claim: In the Hunan province of the People's Republic of China, Hengyang County's seat is Xidu.
Evidence: Hunan People's Republic of China Xidu 
Hengyang County (simplified Chinese: 衡阳县; traditional Chinese: 衡陽縣; pinyin: Héngyáng Xiàn; lit. 'south of Mount Heng') is a county and the 5th most populous county-level division in the Province of Hunan, China; it is under the administration of Hengyang prefecture-level city. The county has 17 towns under its jurisdiction, the county seat is Xidu Town (西渡镇). China (Chinese: 中国; pinyin: Zhōngguó), officially the People's Republic of China (PRC; Chinese: 中华人民共和国; pinyin: Zhōnghuá Rénmín Gònghéguó), is a country in East Asia.