Sunpu Castle
Yaizu is an ancient settlement, with Yaizu Shrine claiming to have been founded in the 5th century during the Kofun period, and numerous kofun tumuli are found within the city limits. During the Edo period, Yaizu developed as a port under Tanaka Domain, and fish from Yaizu was frequently supplied to the retired "shōgun" Tokugawa Ieyasu at nearby Sunpu Castle. In the October 1, 1886, establishment of the modern municipalities system after the Meiji Restoration, Yaizu Village was established within Mashizu District, Shizuoka prefecture. Mashizu District merged into neighboring Shida District in 1896. The following year, in 1897, author Lafcadio Hearn began his residence in Yaizu.