The Hie Shrine (日枝神社, Hie Jinja) is a Shinto shrine in Nagatachō, Chiyoda, Tokyo, Japan. Its June 15 Sannō Matsuri is one of the three great Japanese festivals of Edo (the forerunner of Tokyo). Other names for the shrine include Hiyoshi Sannō-sha, Hiyoshi Sannō Daigongen-sha, Edo Sannō Daigongen, Kōjimachi Sannō, Sannō-sha, and Sannō-sama.
The main god of the shrine is Ōyamakui-no-kami.(Wikipedia)