Sakaya 【昌谷】3 The Japanese surnames etymology dictionary.
① Birth of Kouchi-ken Nankoku-shi Hisaeda (formerly island). "Shimada" recorded in Azuchi-Momoyama period in the same place is a comparison site in the island. Kouchi-ken also includes shimano notch. Tell the story of the place of residence by Nagasaki-ken 's Shimabara Peninsula due to the warfare of Shimabara in 1637 (Kanaga 14 years) and 1638 (Kanagawa 15 years).
② Topography . From within an island like land. Kagoshima-ken Isa-shi From the island gate of the gate division system which was in Edo period at Otuchi Fuchiba. Ehime-ken Uwajima-shi It is distributed in Nichinoshima. The land is the land of the island of the Seto Inland Sea.
③ Creation . In Akita-ken Oodate-shi tells that "inside" was added to "island" because it was a swordsmith of Ishige Kiyohiko (Island Shima) who is a warrior of the Warring States era and Azuchi Momoyama era. 島 reference.
※ Saga-ken Saga-shi tells from the inside of the multipurpose island. Period, location unknown. Saga-ken Kashima-shi Takahiro / Takatsuhara was in the Edo period in the Kashima clan of the clan office.