Although it is not exactly certain when Masanobu KANO went to Kyoto, whom he studied under and when he became the official painter for the Muromachi shogunate, it is clear (according to certain records) that Yoshimasa ASHIKAGA, the eighth Shogun of the Muromachi shogunate, gave him an important position.
狩野正信がいつ上京し、誰に師事し、いつ室町幕府の御用絵師となったか、正確なところは不明であるが、室町幕府8代将軍・足利義政に重用されていたことは諸記録から明らかである。