Ouyang Xun (557-641), Han nationality, was born in Linxiang, Tanzhou (now Changsha, Hunan), and was one of the four masters of regular script (Ouyang Xun, Yan Zhenqing, Liu Gongquan and Zhao Mengfu). Dr. Taichang, an official in Sui Dynasty, was named Prince Gengling in Tang Dynasty, also known as "Ouyang Gengling". With the other three contemporaries (Yu Shinan, Chu Suiliang, Xue Ji), they are also called the four masters in the early Tang Dynasty. Because his son Ouyang Tong is also good at calligraphy, he is also called "Big Europe". Ou Yangxun is called the first regular script in the Tang Dynasty because of his rigorous method and precipitous brushwork. Both he and Yu Shinan were well-known for their calligraphy in the early Tang Dynasty, and they were also called "Ou Yu". Later generations saw danger in the middle of the flat with their books, and they were the first to learn, and the name was "Ou Ti".