Yi Yuanji – Chinese Northern Song painter famous for his realistic paintings of animals (b. 1000)
Later on, gibbons became a popular object for Chinese painters, especially during the Song Dynasty and early Yuan Dynasty, when Yì Yuánjí and Mùqī Fǎcháng excelled in painting these apes.
As an art critic, he greatly admired the portrayal of the apes by such renowned painters as Yi Yuanji and Muqi Fachang.