In the Sengoku Period (Period of Warring States) (Japan), dominant Shugo daimyo (Japanese territorial lord as provincial constable) and Shugodai (the acting Military Governor) who were preserving Inuoumono manners perished one after another, and those who could maintain the manner even to the Edo period were only the Shimazu clan and the Ogasawara clan.
戦国時代(日本)に入ると、作法を保持していた有力な守護大名・守護代が次々と滅び、江戸時代まで作法を継承できたのは島津氏と小笠原氏だけとなった。