Nōin

Tachibana no Nagayasu (橘永愷), 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 Fujiwara no Norikane (1107–1165).

Nōin authored of the Gengenshu and Nōin Utamakura.

Poetry
One of his poems is anthologized in the Ogura Hyakunin Isshu: