Nōin
Tachibana no Nagayasu, also known was Nōin, was a Japanese poet and monk of the late Heian period.
Along with Izumi Shikibu, Nōin is one of "Thirty-six Medieval Poetry Immortals" of waka poetry selected by .
Nōin authored of the Gengenshu and Nōin Utamakura.One of his poems is anthologized in the Ogura Hyakunin Isshu:
