Mitsuhide was also instrumental in getting Toshimitsu SAITO's sister married to Motochika CHOSOKABE, but in 1580 Nobunaga changed his policy and tried to govern Shikoku with force, for which Mitsuhide lost face.
そして光秀は斎藤利三の妹を長宗我部元親に嫁がせ婚姻関係を結ぶまでこぎつけたが、天正8年（1580年）に入ると織田信長は武力による四国平定に方針を変更し光秀の面目は丸つぶれになった。