Gosha Suwa Shrine
In the early 16th century, the leader of the Imagawa clan built a castle called Hikuma Castle in the province of Tōtōmi, which also had a shrine within its enclosure. Later in the same century, Tokugawa Ieyasu, who would become the ruler of unified Japan, seized the castle, expanded it, and renamed it Hamamatsu Castle. In 1579, after the birth of his son Tokugawa Hidetada, he converted the shrine into a place of worship for the Shintō deity Futsunushi. The following year, he had the holy place rebuilt outside the castle's enclosure.