Yang Buzhi
Yang Buzhi was born in Qingjiang, Jiangxi Province, in China.
He is regarded as a master of ink paintings of plum blossoms in the Song dynasty, and developed techniques which influenced later painters. He "resolved the depiction of flowering plum into a linear system built from brushstrokes and structures adapted from calligraphy".
Four Stages of Blossoming Plum, circa 1165, is the only surviving work that can be attributed to him with certainty.