Especially in Shinano Province where the Sanada and the Ashita clans adopted Mishima-goyomi, and the Suwa and the Ogasawara clans adopted Kyo-goyomi (a calendar made by the Onyoryo - Bureau of Divination - in Kyoto), confusion occurred because a leap month occurred differently within the same province.
特に信濃国では同じ国内であるにも関わらず、真田氏・蘆田氏は三島暦、諏訪氏・小笠原氏は京暦に従って閏月を実施するなどの混乱が生じた。