Wikipedia
Ōtōkan
The is a lineage of the Rinzai school of Zen (a form of Japanese Buddhism). It was founded by Nanpo Jomyo, who received the dharma in China in 1265 and returned to Japan in 1267.
It is centered at the temple complexes of Myōshin-ji (founded by Kanzan Egen, the third patriarch) and Daitoku-ji (founded by Daito Kokushi, the second patriarch) in Kyoto, and sometimes referred to as the "Myōshin-ji lineage" accordingly. It now consists of two main lines, the Inzan line and the Takujū line, which date to circa 1800.