Who are the four "Su Huang Camouflages" in calligraphy?

Su Shi: (1037-110/) A writer and painter in the Northern Song Dynasty. Zi Zizhan, a famous Dongpo layman, was born in Meishan, Meizhou (now Sichuan).

Huang Tingjian: (1045- 1 105), whose real name is Lu Zhi, is a rich man in Fenning, Hongzhou (now Xiushui, Jiangxi).

Mi Fei (1050- 1 107) was an outstanding painter and calligrapher in the Song Dynasty. The first name is Fu, the word chapter, the name is Serene Waishi, Xiangyang, and the name is Lumen Jushi.

Finally, it should be Cai Jing. Why was he deleted from the list? Everyone knows that he is a big traitor ~ ~ ~

So holding a Cai Xiang ... in fact, he is far worse than Cai Jing. ...