 The giant ginkgo tree is suspected to have been planted at around this time.Ōta Dōkan (1432-1486), the samurai and Buddhist monk who designed and built the Edo Castle (now the Imperial Palace), is said to have taken shelter from a storm under a big castanopsis tree in the shrine precincts which was destroyed, probably during World War II.The area of the Kita-ku ward surrounding it recibes the name of "Oji" from the shrine.