Ou Yangxun was a calligrapher of what dynasty in China, and what he founded had what characteristics?

Ou Yangxun (557-641), Han nationality, was born in Linxiang (now Changsha), Tanzhou, Tang Dynasty, with four famous writers (Ou Yangxun (European style), Yan Zhenqing (Yan style), Liu Gongquan (Liu Ti) and Zhao Mengfu (Zhao Ti) in Yuan Dynasty. ) one. Born in Hengzhou (now Hengyang) in 557 AD, his ancestral home is Linxiang (now Changsha, Hunan) in Tanzhou. 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".