Ogasawara Nagatoki

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Ogasawara Nagatoki (小笠原長時, Ogasawara Nagatoki^?)(1519-1583) was a daimyo (feudal lord) of Shinano Province during the Sengoku Period in Japan. In 1542, Shinano Province was invaded by Takeda Shingen, and Ogasawara allied with Murakami Yoshikiyo, Suwa Yorishige, and Kiso Yoshiyasu in an attempt to stop him. They met Takeda Shingen's forces at the Battle of Sezawa on March 9, 1542, and were defeated.

Following this defeat, and the conquest of his lands, Ogasawara allied himself with Uesugi Kenshin, Takeda's primary rival. He fought alongside Takatō Yoritsugu in 1545, ultimately failing in their defense against the first siege of Takatō Castle. Ogasawara was defeated by Shingen again several years later, in the 1548 Battle of Shirojiritoge, in which he was hit by a surprise attack at dawn; many of his men were killed as they reached for weapons and armor. His losing streak continued the following year, when Shingen lost a number of fortresses, including Fukashi (now Matsumoto Castle), in the Siege of Fukashi.

This final, bitter, loss caused Ogasawara Nagatoki to retreat to Kyoto, where he taught horsemanship and archery (kyūdo) until his murder in 1583.