Which dynasty was Yan, the four great calligraphers?

1, Ouyang Xiu of the Northern Song Dynasty (1007- 1073), named Yongshu, an alcoholic, was a layman on June 1st. Luling (now Shaxi, Yongfeng County). Outstanding litterateurs and historians in the Northern Song Dynasty

2. Liu Gongquan (778-865) was the last famous calligrapher in Tang Dynasty. He was born in Jingzhao Huayuan (now Yaoxian County, Shaanxi Province). Official to the prince, deceased people call it "Liu". Wang Xizhi began to learn calligraphy, and later visited famous calligraphers in the Tang Dynasty. He thought that Yan Zhenqing and his calligraphy were the best, so he absorbed the advantages of Yan and Europe and became a whole.

3. Tang Yan was an outstanding calligrapher and a great patriot in the middle Tang Dynasty.

4. Zhao Mengfu was a famous painter in Yuan Dynasty and one of the four masters of regular script (Ou Yangxun, Yan Zhenqing, Liu Gongquan and Zhao Mengfu). Zhao Mengfu is well-read, good at poetry and prose, familiar with economy, industrial calligraphy, fine painting, good at epigraphy, fluent in temperament and appreciation. In particular, calligraphy and painting have the highest achievements.