He founded "Yan Ti" regular script, and was called "four masters of regular script" with Zhao Mengfu, Liu Gongquan and Ou Yangxun.
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. During the kaiyuan period (7 13-74 1), he was promoted to a scholar, was appointed as the censor for four times, and moved to the temple to serve the censor. Rejected by Yang, the powerful minister at that time, he was demoted to the plain (now Shandong) as a satrap. Known as Yan Pingyuan. During Su Zong's reign, Fengxiang granted the minister of constitutional affairs and moved to the imperial history. During the reign of Emperor Zong, the official department was the minister and the prince was the teacher. He was named Duke Lu, and people called him Duke.
Yan Zhenqing is a descendant of Langya family with profound family background. Yan Shigu, the fifth ancestor, was a famous scholar in the Northern Qi Dynasty, who once wrote family instructions for Yan. When Yan Zhenqing was young, his family was poor and lacked paper and pens, so he used a pen to brush loess water to practice calligraphy on the wall. Chu Suiliang was a beginner, and later learned Zhang Xu's brushwork. He also absorbed the characteristics of the four schools in the early Tang Dynasty and accepted the brushwork of Zhuanli and the Northern Wei Dynasty. He completed the vigorous and broad creation of colorful regular script, which set a model for regular script in Tang Dynasty.
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".
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