The origins of Rinnō-ji go back to the 8th century and the work of the Buddhist priest Shōdō Shōnin ( 勝 道 上人 ). Extensive extensions were carried out at the beginning of the Edo period , in particular the mausoleum ( Taiyū-in Reibyō ) built for Tokugawa Iemitsu in 1653 , which consists of several dozen buildings in the Gongen-zukuri style. Its main shrine ( honden ), the ai-no-ma room, the prayer hall ( haiden ) and 59 scrolls are national treasures of Japan .
In the course of the state enforced separation of Buddhism and Shintō ( Shinbutsu Bunri ), several buildings ( Sambutsudō ( important cultural asset of Japan ) and Sōrintō ) were separated from their connection with the Shintō shrines Futara-san and Tōshō-gū and relocated to their current locations .
In 1999, the temple was named a World Heritage Site by UNESCO, along with other religious buildings in Nikkō .