Ryūkan 隆寛 (1148–1227), Tendai-trained Pure Land teacher and one of the most senior of 源空 Hōnen’s disciples. Son of the Tendai scholar-monk Kōkaku 皇覚 and trained in Tendai scholasticism on Mt. Hiei before his conversion to Hōnen’s Pure Land path c. 1196. His doctrinal position — articulated most clearly in the Ichi-nen ta-nen funbetsu-ji KR6t0388 and the Jiriki tariki-ji KR6t0389 — is the doctrinal ancestor of 親鸞 Shinran’s mature shinjin / nenbutsu synthesis: Shinran commented on the Ichi-nen ta-nen funbetsu-ji in his Ichi-nen ta-nen mon’i KR6t0367 and adopted its principal positions.
Ryūkan was exiled in the Karoku-no-hōnan persecution of Karoku 3 / 1227 to Mutsu (later commuted to Ōshima in Sagami) and died there in the same year, age 80. The exile was the second great persecution of the Hōnen school after the 1207 Jōgen-no-hōnan under which Shinran was exiled to Echigo. The DILA authority id is A001246.