Suwa Prefecture (諏方国, Suwa no kuni) is an old province in the area of Nagano Prefecture.[1]
It was located in the Tōsandō region of central Honshu. According to the old history book Shoku Nihongi, it was established on June 26 of 721 and abolished on March 3 of 731 (old Japanese calendar's date). Neither the location of the capital nor the exact border with Shinano is known.
- ^ Nussbaum, Louis-Frédéric. (2005). "Suwa" in Japan Encyclopedia, p. 917, p. 917, at Google Books.