Su Shi, Huang Tingjian, Mi Fei and Cai Xiang, referred to as "Su Huang Mi Cai" for short, have their own wonderful calligraphy, which is the representative of Shangyi calligraphy in the Song Dynasty.
Su Shi (137 ~ 111), born in Meishan, Sichuan Province, was named Zizhan, whose name was Dongpo Jushi. He studied calligraphy with two kings, Yan Zhenqing, Xu Hao and Li Beihai. His calligraphy is rich in stippling (Dong Qichang refers to it as "ink pig"), childlike, vigorous in brushwork, and broad in writing, and his calligraphy is the first in Song Sijia. His works are Cold Food Poems in Huangzhou, Black Clouds in the Sky, Poems in Sacrifice to Yellow, Poems on Red Wall, Poems on Spring in Dongting, Poems on Songlao in Zhongshan and Poems on Taibai Fairy.
Huang tingjian (145 ~ 115), whose name is Lu Zhi, was born in Fenning, Hongzhou (Xiushui, Jiangxi), and was a Yuan Wailang in the official department. His calligraphy studies include Zhou Yue, Yi Heming, Huai Su, Liu Gongquan and Yang Ningshi. Among the circulating works, Su Dongpo's Postscript on Cold Food Poems in Huangzhou, Zhushangtie, Songfengge Poetry Volume and Poem to Forty-nine Nephews are the most famous, and the cursive script includes Biography of Lian Po and Lin Xiangru.
Mi Fei (151 ~ 117), whose first name was Fu, whose character stamp was Xiangyang Manshi and Haiyue Waishi, lived in Taiyuan, Shanxi, and later moved to Xiangyang, Hubei, known as Mi Xiangyang, and later settled in Runzhou (now Zhenjiang, Jiangsu). Song Huizong was appointed as a doctor of calligraphy and painting, a member of the Ministry of Rites, and was known as "Minangong" in the world. His behavior is often strange, erratic and crazy, and he is called "Mi Dian" in the world. His paintings and his son Mi Youren (174 ~ 1153) created "Mi's Yunshan" or "Mi Jiashan Water", which is also called "Ermi". His calligraphy works are handed down as Mid-Autumn Festival Post, Tiaoxi Poem Volume, Shu Sutie, On Cursive Calligraphy Post, Coral Post, Poem of Praying for the Moon, Hongxian Poem Post and so on.
Cai Xiang (112 ~ 167), whose name is Jun Mo, was born in Xianyou, Fujian, and graduated from Duanming Hall. Representative works: The Story of Wan 'an Bridge, The Attendant's Post, The Song of Thinking, The Spring Post.
There has been a long-standing debate about whether Cai in Song Sijia is Cai Xiang or Cai Jing. Now it is generally believed that Cai Xiang replaced Cai Jing, and Cai Jing was replaced by Cai Xiang, who built Luoyang Bridge for the benefit of the people because of his corrupt character. Cai Jing (AD 147 ~ 1126) was a long character, and Cai Xiang was his nephew. Cai Jing was a beginner of calligraphy in Xu Hao and Ou Yangxun, and later became a master of calligraphy.