Shortly after the death of Ieyasu in 1619, Masanori was accused of breaching Buke Shohatto (codes for the warrior households) by repairing a small part of the Hiroshima-jo Castle, which was damaged during the flood caused by a typhoon, without permission.
家康死後まもなくの元和(日本)5年（1619年）、台風による水害で破壊された広島城を無断でほんの少しだけ修理したことが武家諸法度違反に問われる。