《宋书·志·卷三十五》
安固令，东吴设置时名罗阳，孙皓时改名安阳。晋武帝太康元年改称安固。
安固令，吴立曰罗阳，孙皓改曰安阳；晋武帝太康元年更名。
Angu Commandery, Luoyang was its name when it was set up by Eastern Wu. Sun Hao renamed it Anyang. In the first year of Emperor Wu of Jin's Tai Kang, it was renamed Angu.