다케다 신겐 (Takeda Shingen) was a prominent Japanese daimyo during the Sengoku period, known for his military prowess and strategic acumen. He ruled the Takeda clan and was based in Kai Province. Shingen is often celebrated for his innovative tactics in battle and his ability to unite various factions under his leadership. He is also famous for his rivalry with Uesugi Kenshin, another powerful daimyo of the time. Shingen's legacy includes the development of the Takeda cavalry, which became renowned for its effectiveness in warfare. His life and achievements have made him a legendary figure in Japanese history.