Zhang Zeduan (simplified Chinese: 张择端; traditional Chinese: 張擇端; pinyin: Zhāng Zéduān; Wade–Giles: Chang Tse-tuan; 1085–1145),[1] alias Zheng Dao, was a Chinese painter of the Song Dynasty. He lived during the transitional period from the Northern Song to the Southern Song, and was instrumental in the early history of the Chinese landscape art style known as shan shui.