Tenso Suwa Shrine — 天祖諏訪神社

In Minami-Ōi in Shinagawa stands Tenso-Suwa Shrine, formed in 1965 from the union of two shrines that had long faced each other across the Tachiai River along the old Tōkaidō highway.

The Tenso shrine, once known as a Shinmeisha, appears on a map of the Ōi district from the 1190s, so its founding is older still; tradition holds it once stood within the precinct of Raifukuji, a temple founded in 990. The Suwa shrine, by the coastal estate of the Matsudaira lords of Tosa, dates from before 1631. In 1965, when the Tenso shrine was rebuilt, the two were merged on its site, and the Fukurokuju of the Tōkai Seven Lucky Gods was brought here from the nearby Hamakawa Shrine.

The shrine enshrines Amaterasu, the sun goddess carried over from the old Tenso (Shinmei) shrine, together with Takeminakata, the deity of the former Suwa shrine — two tutelary gods of neighbouring riverside districts now worshipped under one roof.