Emperor Saga is one of the Noshoka (master of calligraphy) called Sanpitsu (the three great calligraphers) along with Kukai and TACHIBANA no Hayanari, and calligraphy products believed to be Emperor Saga's shinkan are as follows:
嵯峨天皇は、空海・橘逸勢とともに三筆と称される能書家であり、嵯峨天皇の宸翰と伝えられる書道には以下のものがある。