Which dynasty did Liu Gongquan and Liu Gongquan belong to?

Liu Gongquan (778 -865) was born in Jingzhao Garden (now Yaozhou District, Tongchuan City, Shaanxi Province), Han nationality. A famous calligrapher and poet in the Tang Dynasty, the younger brother of Liu Gongzhuo, the minister of war. After the seven dynasties of the Constitution, Mu, Jing, Wen, Wu, Xuan and Yi, he became an official, from the official to the prince, and served as an official of Hedong County, so he was called "Liu" in the world. In the sixth year of Xian Tong (865), Liu Gongquan died at the age of 88 and was given to the Prince.

Liu Gongquan's calligraphy is famous for regular script, which is as famous as Yan Zhenqing, and is called "Yan Liu", and is also known as "four masters of regular script" with Ou Yangxun, Yan Zhenqing and Zhao Mengfu. Wang Xizhi, a beginner in calligraphy, later visited a famous calligrapher in the Tang Dynasty. He thought that Yan Zhenqing and his calligraphy were the best, so he learned the strengths of Yan and Europe, and created his own "Liu Ti" between the charm of Jin people and the graceful and unrestrained calligraphy of Yan. He is famous for his infinite strength, and later generations have the reputation of "Yan Gu". Liu Gongquan also writes poems. Complete Tang Poetry contains five poems, and Complete Tang Poetry contains one poem.