The 1582 was one of the final battles of the Takeda clan against the forces of Oda Nobunaga and Tokugawa Ieyasu. After the destruction of the Takeda in Kai province in 1582, resulting in the death of Takeda Katsuyori and many others, Takeda Morinobu (also known as Nishina Morinobu), the fifth son of the famed Takeda Shingen, fortified himself within the Takatō castle. Oda Nobutada ordered that a certain priest would be sent to Morinobu to mediate, but Morinobu responded by cutting the unfortunate man's nose and ears, and then sent him back. Following this, Nobutada launched a full-scale attack on the castle, effectively killing Morinobu.