Shingen died in 1573 and a menace of Takeda clan is reduced to half; with the death of Shingen there was no one who could fight with Nobunaga in equal terms in the world; in addition, anti-Nobunaga network collapsed, too.
元亀4年（1573年）に信玄が死んで武田氏の脅威は半減し、信長と対等に戦えるだけの人物はこの世にいなくなった上、信長包囲網も瓦解した。