Who is the famous calligrapher who practices calligraphy with a brush and yellow mud as ink?

Yan Zhenqing.

Yan Zhenqing, whose real name is Chen Qing and alias is Fang Ying, was born in Wanzhao, Jingzhao (now Xi, Shaanxi), and was a famous official and calligrapher in the Tang Dynasty. He and Liu Gongquan are called "Yan Liu", and Zhao Mengfu, Liu Gongquan and Ou Yangxun are also called "four masters of regular script".

Yan Zhenqing's calligraphy is exquisite and good at it. Chu Suiliang was a beginner and later studied under Zhang Xu. He got his brushwork and created "Yan Ti" regular script, which had a great influence on later generations. He is also good at poetry, including,, and so on. The Song people compiled Yan Ji.

He once offended the powerful minister and was demoted to the plains satrap. When Tang Daizong was an official, he went to the official department to be an official, became a prince and a surname, and named him Duke Lu. Strangled in 784, posthumous title Stuart, posthumous title "Wen".

Character evaluation:

Yan Zhenqing was an outstanding politician and calligrapher in the middle Tang Dynasty. His "Yan Ti" regular script is called "four masters of regular script" with Zhao Mengfu and Liu Gongquan, and "Yan Gu" with Liu Gongquan. He is honest, upright, indomitable, upright and upright, and is famous for his benevolence, righteousness and loyalty, and finally he is determined to die.