Kan? Masanobu (c.14341530, Kyoto) was the chief painter of the Ashikaga shogunate and is generally considered the founder of the Kan? school of painting. The Kan? school was a style of painting that maintained dominance over 400 years from Masanobu's time up through the Meiji Restoration (1868). 'Zhou Maoshu Appreciating Lotuses', a designated National Treasure of Japan, is a 15th century painting mounted as a hanging scroll by Kan? Masanobu that depicts the 11th century Confucian scholar Zhou Maoshu in a boat floating on a lake with lotuses.