The great calligrapher revered as the "Northern Sage" in the history of art is ( )

B. Zheng Daozhao

His works have all the characteristics of square, round, fat, thin, length, size, breadth, compactness, etc. in terms of calligraphy, pointillism and combination techniques. In terms of style and appearance, he is thick, vigorous, solemn, elegant, vigorous, elegant, etc., each of them is brilliant, and can be regarded as the culmination of Wei stele. Many people compare him with Wang Xizhi of the Eastern Jin Dynasty in the south, and respectfully call him the "Northern Saint" in the book.