《水经注·卷三十九》
王莽改郡名为南平，县名为宣风，城是项羽迁义帝时所筑。
王莽更名南平，县曰宣风。项羽迁义帝所筑也。
Wang Mang changed the name of the prefecture to Nanping, the name of the county to Xuanfeng, and the city was built by Xiang Yu when he transferred Emperor Yi.