Azuma Kagami
Historical accounts of the temple are rare, remaining most of its past largely unknown. Sugimoto-dera certainly predates the Kamakura period (1185–1333) and is therefore, if not the oldest, among the oldest temples in Kamakura. The Azuma Kagami calls it "Ōkura Kannondō", or "Ōkura Kannon Hall", from the old name of the area where it stands.