Hyūga Province
The temple was established in 1610 in Akasaka by Ryōnan Zenji, and its name comes from the Dharma name of Itō Sukenori, "daimyō" of Obi Domain in Hyūga Province (preset day Miyazaki Prefecture). In 1636 it was relocated to its present location. At the time, the temple was directly on Edo Bay and for that reason was nicknamed "Kaijō Zenrin" (literally, "the Zen forest above the sea"). During the Edo Period it served as the "bodaiji" for a number of "daimyō" clans, including the: