Chu Suiliang (596-658) was born in Qiantang (now Hangzhou, Zhejiang). Son of Chu Liang. During the reign of Emperor Taizong, he served as a living lang, an admonition officer and a minister of Chinese books. After Emperor Gaozong ascended the throne, he was appointed as the Duke of Henan and served as the right servant of Shangshu, known as "Chu Henan" in history. Later, he was demoted many times and died for opposing the high opposition to Wu Zetian. He is proficient in literature and history, especially calligraphy. Later generations called him Ou Yangxun, Yu Shinan and Xue Qi, the four great calligraphers in the early Tang Dynasty. Its official books are rich and varied, which has a great influence on later calligraphy. Inscriptions include a Buddhist niche, a monument to Master Meng, a square monument, and the imperial edict of Wild Goose Pagoda.
Ou Yangxun (557-64 1) was born in Linxiang, Tanzhou (now Changsha, Hunan). At the beginning of Tang Zhenguan, the official was the Crown Prince, and he was awarded a bachelor's degree in Hong Wen Pavilion. Calligraphy, bold and sharp fonts, is called "European style" when it is flat. There are official inscriptions such as Jiuchenggong Liquan Monument, Huadu Temple Monument, Yugong Wenyanbo Monument, and Hans Zhang, Meng Yin and other running scripts. In addition, Chen and others' Collection of Literature and Art has 100 volumes.
Yu Shinan (558-638) was a calligrapher in the Tang Dynasty. Bo Shi was born in Yuyao, Yuezhou (now Zhejiang). He has served as secretary, supervisor and bachelor of Hong Wen Pavilion. History is said to have been taught by Wang Xizhi's seventh generation Sun Zhi. His brushwork is soft on the outside and rigid on the inside, and he is one of the four masters in the early Tang Dynasty. Emperor Taizong once said that he had five unique skills, namely, morality, loyalty, erudition, and literature. The ink handed down from ancient times includes the inscription "Confucius Temple Monument" and 160 volume "Bei Tang Book Dynasty".
Yukime (649-73 1) was born in Fenyin, Zhou Pu (now southwest of Wanrong, Shaanxi). Take Jinshi as an example. He has served as a Sheren of Zhongshu, an admonition officer, an assistant minister of Zhongshu who knows politics, a minister of industry, a minister of etiquette, and a prince of Shaobao. Good at calligraphy and painting. The figures, Buddha statues, birds and beasts, trees and stones, and cranes he painted are particularly vivid and can be called a must. Both Li Bai and Du Fu have poems praising them. Inscribed on the monument are "Prince Sage Monument" and "Xinxing Stone Zen Monument".