Huai Su (737-799), a native of Lingling, Yongzhou, was a calligrapher in the Tang Dynasty. He is famous for "Weeds" and is known as the "sage in the grass" in history.
Ou Yangxun (557 -64 1), a native of Linxiang, Tanzhou in the Tang Dynasty, is a famous calligrapher and official, and one of the four masters of regular script.