"Zhao Mengfu Kai Ji Shu Zi Lian" Zhao Mengfu was one of the most outstanding painters in Yuan Dynasty, and had a wide influence in the history of China painting and calligraphy. Zi Zi Ang, named Song Xue, was born in Wuxing, Huzhou (now Zhejiang). Guan Zhi, Dr. Rong Lu, Intellectual Property and National History. He is knowledgeable, good at poetry writing, calligraphy, painting, epigraphy, smooth temperament and appreciation. Good at seal cutting, official script, authentic works, calligraphy and cursive script, especially regular script and running script. His elegant style, neat structure and mellow brushwork are praised as "Zhao Ti" by the world. With Yan Zhenqing, Liu Gongquan and Ou Yangxun, they are also called "four masters" of regular script.