In the early Genna era (Japan, 1615-1624), Musashi adopted Mikinosuke MIYAMOTO, the third son of Shimanosuke NAKAGAWA (a vassal of the Mizuno family), and let him serve the lord of Himeji-jo Castle, Tadatoki HONDA, however, Mikinosuke committed suicide as a loyal samurai following Tadatoki's death in 1626.
元和(日本)の初めの頃、水野家臣中川志摩助の三男宮本三木之助を養子とし、姫路城主本多忠刻に出仕させるが、三木之助は寛永3年（1626年）に亡くなった忠刻に殉死する。