Ren Renfa: Artist and Official Ren Renfa was an expert of irrigation works, artist, and a government official of the Yuan dynasty. Born in Qinglong Town, Songjiang, he also served as a hydrological engineer, where his work included dredging an area in what is now Beijing to improve the water supply and leading a team to build embankments after the Yellow River burst its banks. Notable Works His paintings include subjects such as ho…