Wang Xianzhi (344-386)
A calligrapher and poet of the Eastern Jin Dynasty, his courtesy name was Zijing. His ancestral home was Linyi, Shandong. He was born in Kuaiji (now Shaoxing, Zhejiang) and was the seventh son of Wang Xizhi. When he reached Zhongshu Ling, he was known as Wang Daling to distinguish him from his younger brother Wang Min. Together with his father, he was called the "Two Kings"
Yan Zhenqing (709-785)
A politician and calligrapher of the Tang Dynasty. His courtesy name was Qingchen, born in Wannian County, Jingzhao Prefecture (now Xi'an City, Shaanxi Province), and his ancestral home was Xiaotili, Linyi County, Langya County (now Zhuman Village, Fangcheng Town, Linyi City, Shandong Province). His regular script, together with Ouyang Xun, Liu Gongquan and Zhao Mengfu, are known as the "Four Masters of Regular Script"
Liu Gongquan (778-865)
Chengxuan, also known as Jingzhao Huayuan in the Tang Dynasty (now Yao, Shaanxi) County), a great calligrapher. Liu Gongquan was granted the title of Duke of Hedong County, which was later also called "Liu Hedong". Gongquan was the successor of Yan Zhenqing, but his calligraphy style was unique. Later he was known as "Yan Liu" and became a model for calligraphy in the past dynasties. There is a saying of "Yan Jin Liu Gu"
Zhao Mengfu (fǔ)[1] (1254-1322)
His courtesy name was Zi Ang, also known as Taoist Songxue, also known as Oubo, Taoist Shuijinggong, etc. A native of Wuxing (now Huzhou, Zhejiang), China, he is a descendant of the Song Dynasty. Bureaucrat, calligrapher and painter of the Yuan Dynasty. His wife was Duansheng, a painter and poet of the Yuan Dynasty. Grandfather of Yuan Dynasty painter Wang Meng
Ouyang Xun (557-641)
Zi Xinben was born in Linxiang County, Tanzhou (now Changsha City, Hunan Province). An official in the late Sui and early Tang Dynasties and a calligrapher in the Tang Dynasty. His regular script font became a frequent imitation for later calligraphy students
Source: Wikipedia