And it is said that somen was first produced by Tanenushi, the second son of Jugoinojo (Junior Fifth Rank, Upper Grade) Omiwa no ason Saikusa, who was the twelfth descendant of Otatane no mikoto.
その十二世の孫である従五位上大神の朝臣狭井久佐の次男穀主が創めて作ったとされる。