Liu Gongquan, a famous calligrapher in the world known as "Yan Jin Liu Gu", which dynasty was he from? Liu Gongquan, a famous calligrapher in the late Tang Dynasty (778-865), was the last great calligrapher in the Tang Dynasty , a native of Jingzhao Huayuan (now Yaoxian County, Shaanxi Province). From the palace to the crown prince's young master, he was called "Liu Shaoshi" in his old life. He passed the Jinshi title at the age of twenty-nine and worked as a low-level official in the local area. Later, Emperor Mu Zong of the Tang Dynasty accidentally saw his handwriting. As soon as he became a calligrapher, he was summoned to Chang'an by the court. At that time, Liu Gongquan was already in his forties. Mu Zong asked Liu Gongquan how to use the pen, and Gongquan replied: "Use the pen with your heart in mind, and if your heart is upright, your pen will be correct." At that time, Mu Zongzong changed his appearance and understood his advice on writing. His calligraphy has always been valued in the three dynasties of Muzong, Jingzong and Wenzong of Tang Dynasty. He lived in officialdom and served as a scribe, grew up in the court, and had a prosperous official career. He first learned calligraphy from Wang Xizhi. Later, he looked at the calligraphy of famous calligraphers of the Tang Dynasty and thought that Yan Zhenqing and Ouyang Xun's calligraphy was the best, so he absorbed the strengths of Yan and Ou and formed a whole of his own. His calligraphy is balanced, thin and hard, resolutely pursuing the Wei stele, his stippling is crisp and straight, his bones are strong, and his structure is rigorous. "The more expensive the calligraphy is, the thinner and harder it is, the more it can communicate with the spirit." His regular script is slightly more uniform, thinner and harder than his Yan style, so it is known as "Yan Jin Liu Gu".