Liu Gongquan
Liu Gongquan (778 -865), whose real name was Cheng Xuan, was a Jingzhao Chinese in the Tang Dynasty. He is a prince's official and is called "Liu" in the world. Because he was also named Duke of Hedong by the emperor, later generations also called him "Liu Hedong". He is a descendant of Yan Zhenqing, and later called them "Yan Liu", which became a model of calligraphy in past dynasties. As far as the characteristics of Chinese characters are concerned, they are famous for their thinness and strength. The regular script written is beautiful and strong, and the running script and regular script are the most exquisite. Liu Gongquan's calligraphy is called "Liu Style" because of its unique works.
Yan Zhenqing
Yan Zhenqing (709-785), a minister and calligrapher in the Tang Dynasty, was born in Xiaolangdi (now Feixian County, Linyi City). His great-grandfather, grandfather and father all made official seals, and his mother Yin was also good at calligraphy. His regular script is contrary to the calligraphy style of the early Tang Dynasty, featuring brushwork. It is a typical example of perfect combination of calligraphy beauty and personality beauty. His calligraphy style is called "Yan Ti", which is also called "Yan Liu" with Liu Gongquan, and has the reputation of "Yan Liu Jin Gu".
Ouyang Xun
Ou Yangxun (557-64 1), a native of Linxiang, Tanzhou (now Changsha, Hunan), is one of the four masters of regular script (Ou Yangxun, Yan Zhenqing, Liu Gongquan and Zhao Mengfu). Dr. Taichang, the official of Sui Dynasty, was named Prince of Gengling in Tang Dynasty, also known as "Ouyang Gengling". Together with the other three contemporaries (Yu Shinan, Chu Suiliang, Xue Qi), they are called the four masters of the early Tang Dynasty. Because his son Ouyang Tong is also good at calligraphy, he is also called "Big Europe". Ou Yangxun is known as the first regular script in Tang Dynasty for his rigorous brushwork and precipitous brushwork.
Zhao Mengfu
Zi Zi Ang, whose real name is Song Xue, was born in Song Xue Road, Huzhou (now Xing Wu, Zhejiang) and one of the four masters of regular script (Ou Yangxun, Yan Zhenqing, Liu Gongquan and Zhao Mengfu). Song Taizu's grandson, Zhao Kuangyin XI, was later awarded Qin by Wang Fang. Zhao Mengfu, a great calligrapher, experienced a complicated and embarrassing life. As a adherent of the Southern Song Dynasty, he left many controversies in the history books. The fundamental reason for belittling Zhao Mengfu's book style is that he despises Zhao Mengfu.