Its June 15 Sannō Matsuri is one of the three great Japanese festivals of Edo (the forerunner of Tokyo).

Another theory identifies the Hie with the Sannō Shrine mentioned in a 1362 record of the Kumano Nachi Taisha.

The shaden was lost to the Great Fire of Meireki of 1657, and in 1659 Tokugawa Ietsuna rebuilt it at its present location.

The shrine stands southwest of the castle, in the ura kimon direction according to onmyōdō.

The Hie Shrine possesses one National Treasure, a tachi (single-edged sword).