was an officer under the Azai clan who was known as a fierce warrior during the Sengoku period of 16th century of Japan. Naotsune was opposed to the political marriage between his lord Azai Nagamasa and Oda Nobunaga's sister Oichi. During the Battle of Anegawa, Naotsune camouflaged his own men to resemble those of Nobunaga's, to infiltrate into Nobunaga's army. Nobunaga became aware of Naotsune's intentions, and killed him.