Are everyone from the Tang Dynasty?

Yes, they are Ouyang You, Chu Suiliang, Yan Zhenqing and Liu. All belong to the Tang Dynasty.

Ouyang you. A copy of the letter "A.D. 557-64 1", Changsha, Hunan. For the prince rate. "The Book of the Tang Dynasty" said: "Wang Xizhi's book, which has the first effect, must pass through the danger, because it is named after it, and people think it is the law." Regular script is both square and garden, strong and dangerous. Vertical hook, etc. Still handed over to the law. Serious structure. Contraction, opening, avoiding mistakes and stippling are all quite ingenious. There are inscriptions handed down from ancient times, such as the inscription of Jiuchenggong Liquan, the degree of change and so on.

Chu Suiliang's "596-659 AD" is a good word. Qiantang people in Hangzhou. The first teacher, Yu Shinan, was the late King Zhong of France. Regular script has the method of official script, which is difficult to practice and has its own style. Although it is miscellaneous, it does not lose its essence. A hook and a press have 1000 equal forces. External expansion, internal pressure, gold between the lines, jade between the lines. Wen Ya is beautiful and generous. From generation to generation, there are Ni Kuanzan and Yin Fu Jing.

Yan Zhenqing. "709-785 AD" was written by Chen Qing, a native of Linyi. Chu Suiliang was a beginner, and later he got his brushwork from Zhang Xu. His book is honest and informal, but it is not dangerous. Spend your time on laws and regulations and enjoy leisure and satisfaction. Seven flavors are beautiful, the words are sparse outside and dense inside, and the back is orderly. The strength of bones is vigorous, and the strength is behind the paper. It broke through the conventions of the early Tang Dynasty and created a new style. Therefore, it is called Yan Ti. Handed down works include "Magu Xiantan Ji" and so on.

Liu. 778-865 AD. This word is sincere. Yaoxian County, Shaanxi Province. Famous for regular script. His book is out of beauty, but it can produce new ideas. Strong, strong. A tight knot. It is called Yanliu Jingu. So it's called Liu Ti. There are many book monuments, the most important of which are the mysterious tower, the Diamond Sutra and the Shence Army Monument.