casualties. Despite his initial reluctance, Ieyasu was convinced by his generals to retreat. The battle was a major defeat, but in the interests of maintaining the appearance of dignified withdrawal, Ieyasu brazenly ordered the men at his castle to light torches, sound drums, and leave the gates open, to properly receive the returning warriors. To the surprise and relief of the Tokugawa army, this spectacle made the Takeda generals suspicious of being led into a trap, so they did not besiege the castle and instead made camp for the night. This error would allow a band of Tokugawa soldiers to raid the camp in the ensuing hours, further upsetting the already disoriented Takeda army, and ultimately resulting in Shingen's decision to call off the offensive altogether. Takeda Shingen would not get another chance to advance on Hamamatsu, much less Kyoto, since he would perish shortly after the siege of Noda Castle later that same year. Shingen was succeeded by his less capable son Takeda Katsuyori. In 1574, Katsuyori took Takatenjin fortress. Then, in 1575, during Takeda Katsuyori's raid through Mikawa Province, he attacked Yoshida Castle and besieged Nagashino Castle. Ieyasu appealed to Nobunaga for help and Nobunaga came personally with 30,000 strong men. The Oda-Tokugawa forces of 38,000 won a great victory and successfully defended Nagashino Castle. Though the Takeda forces had been destroyed, Katsuyori survived the battle and retreated back to Kai Province. For the next seven years, Ieyasu and Katsuyori fought a series of small battles, as the result of which Ieyasu's troops managed to wrest control of Suruga Province away from the Takeda clan. In 1579, Lady Tsukiyama, Ieyasu's wife, and his heir Nobuyasu, were accused by Nobunaga of conspiring with Takeda Katsuyori to assassinate Nobunaga, whose daughter Tokuhime was married to Nobuyasu. For this reason, Ieyasu ordered his wife to be executed and forced his son to commit seppuku. Ieyasu then named his third son, Tokugawa Hidetada, as heir, since his second son had been adopted by Toyotomi Hideyoshi, who would later become an extremely powerful daimyo. In 1580, Oda-Tokugawa forces launched the second siege of Takatenjin; the siege came only six years after Takeda Katsuyori had taken the fortress. This second siege lasted from 1580 until 22 March 1581, and ended with the deaths of 680 men in the Okabe Motonobu garrison and the fall of the fortress to the Oda-Tokugawa forces. The end of