In 1546 Kawagoe Castle was besieged by a coalition of the Yamanouchi and Ogigayatsu Uesugi and the Koga kubo, said to number 80,000. Hojo Ujiyasu, the third Later-Hojo lord, led under 10,000 men and, after lulling the enemy, launched a night attack; coordinating with Hojo Tsunashige inside the castle, he shattered the coalition and killed Uesugi Tomosada. This Battle of Kawagoe, counted among Japan's three great night battles, secured Ujiyasu's control of the Kanto (though contemporary records are sparse and details are debated).