However in 1725, Hayato no kami Tadatsune, the sixth generation of this family, had a sword fight in the Edo-jo Castle, and was given the 'kaieki' sanction (sudden dismissal and deprivation of position, privileges and properties).
しかし、松本藩主時代の享保10年（1725年）に6代隼人正忠恒が江戸城中で刃傷事件を起こしたため改易となる。