For this reason, Nobunaga reinforced the relationship with neighboring powers through alliances such as aiming to marry his legitimate son Nobutada with Shingen's sixth daughter Shinshoni and taking a stance to keep friendship.
このため、嫡男・信忠と信玄の六女・信松尼との婚姻関係を模索し、友好関係を保つ姿勢をとるなど、周囲の勢力と同盟を結んで国内外を固めた。