text: Kansei Chōshū Shokafu chronicle has recorded that in the final phase of the battle, Tadakatsu fought ferociously until the Takeda forces routed, while a retainer of Honda clan named Kaji Masamichi managed to take the heads of Yamagata Masakage and Baba Nobuharu as a prize.Immediately after the Nagashino battle, Tadakatsu and Sakakibara Yasumasa attacked and captured the Suwahara Castle. In 1581, Tadakatsu participated in the Tokugawa army attack on Tanaka castle which guarded by Takeda clan general named Ichijō Nobutatsu. In this battle, Tadakatsu fought together with Matsudaira Ietada, Sakakibara Yasumasa, and Ii Naomasa as they all climbed to Tanaka castle wall and fighting Nobutatsu's soldiers. Later during the Siege of Takatenjin, Tokugawa forces under Tadakatsu and others stormed the castle managed to kill a Takeda general named Okabe Motonobu. Later in the same year, Tadakatsu also defeat the army of Takeda Nobukado. 