《晋书·志·第四章》
惠帝又分划巴西郡建置宕渠郡，统管宕渠、汉昌、宣汉三县，并且与新城、魏兴、上庸共四郡同属梁州。
惠帝复分巴西置宕渠郡，统宕渠、汉昌，宣汉三县，并以新城、魏兴、上庸合四郡以属梁州。
Emperor Hui partitioned Ba commandery to establish Tangqu commandery, administrating three counties: Tangqu, Hanchang, and Xuanhan, and subordinated it to Liangzhou together with Xinzhou, Weixing, and Shangyong commanderies.