Naoe Kanetsugu

Naoe Kanetsugu served as the chief retainer of Uesugi Kagekatsu, the daimyo of the Uesugi clan. He was known for his loyalty and military skill, and famously wore a helmet adorned with a love letter from his wife, symbolizing his devotion.

Naoe Kanetsugu commanded the Uesugi clan forces at the Battle of Sekigahara, fighting on the side of the western coalition. However, the Uesugi army was delayed by engagements with Date Masamune and did not reach the main battlefield in time to influence the outcome.

Naoe Kanetsugu led the defense of the Uesugi domain of Aizu against an invasion by Date Masamune during the Sekigahara campaign. He successfully repelled Date's forces, preventing the fall of the Uesugi stronghold, but this diversion kept him from joining the main battle.

After the Battle of Sekigahara, Naoe Kanetsugu negotiated the surrender of the Uesugi clan to Tokugawa Ieyasu. The Uesugi were allowed to retain their domain but were reduced in size, and Kanetsugu continued to serve the clan under the Tokugawa shogunate.