Nagachika served Nobunaga and fought at Nagashino (1575) and a number of other battles. Following Nobunaga's death in 1582, Nagachika at first sided with Shibata Katsuie, then gave his loyalty to Toyotomi Hideyoshi. In 1585 he was dispatched to destroy the Anegakoji of Hida province and was afterwards given their castle of Takayama. He later gave his support to Tokugawa Ieyasu during the Sekigahara Campaign (1600) and led 1,140 men to the Battle of Sekigahara.
- Initial text from Samurai-Archives.com FWSeal & CEWest, 2005