Suwa Shrine in Itano, Tokushima, is located between temples 2 & 3. It is one of the approximately 10,000 branch shrines of Suwa Taisha up in Nagano.
The grounds were pretty unkempt and it looked as if the shrine was not used by people much.
The main kami enshrined in Suwa shrines are Takeminakata and his wife Yasakatome. According to the legend he was a son of Okuninushi who did not wish to hand over the land to the emissaries sent by Amaterasu. he challenged one of them to a trial of strength and was defeated. This is considered to be the mythological origin of sumo. He fled to Suwa in what is now Nagano.
The legend would seem to indicate that there was resistance within the confederacy of tribes/clans/countries that centered on Izumo to the takeover by the Yamato.