In the second battle of Kōnodai, fought in 1564, Hōjō Ujiyasu

Hojo Ujiyasu

was the son of Hōjō Ujitsuna and a daimyō of the Odawara Hōjō clan.Upon his father's death in 1541, a number of the Hōjō's enemies sought to take advantage of the opportunity to seize major Hōjō strongholds...

 led his men to victory against Satomi Yoshihiro

Satomi Yoshihiro

was a samurai of the Satomi family who fought against the Hōjō clan during Japan's Sengoku period.He was defeated by Hōjō Ujiyasu at the 1564 second battle of Kōnodai; his father, Satomi Yoshitaka, had been defeated by Ujiyasu's father, Hōjō Ujitsuna, in the first battle of Kōnodai in 1538...

. Interestingly, both Ujiyasu and Yoshihiro were the sons of the commanders at the first battle of Kōnodai

Battle of Konodai (1538)

The 1538 battle of Kōnodai took place during the Sengoku period of Japanese history, fought by the leader of the Hōjō, Hōjō Ujitsuna, against the combined forces of Satomi Yoshitaka and Ashikaga Yoshiaki . After a long fought battle between the Hōjō and the allied forces, Ujitsuna arose as the...

, in which Hōjō Ujitsuna

Hojo Ujitsuna

was the son of Hōjō Sōun, founder of the Go-Hōjō clan. He continued his father's quest to gain control of the Kantō ....

 defeated the combined forces of Satomi Yoshitaka and Ashikaga Yoshiaki

Ashikaga Yoshiaki

was the 15th shogun of the Ashikaga shogunate in Japan who reigned from 1568 to 1573. His father, Ashikaga Yoshiharu was the twelfth shogun, and his brother, Ashikaga Yoshiteru was the thirteenth shogun....

.

Outnumbered 20,000 to 8,000, Satomi fell back when the Hōjō vanguard advanced. But this was a feint, and an attempt to draw his enemy into a trap. However, Hōjō Ujiyasu expected a trap of this sort, and had sent his son Ujimasa

Hojo Ujimasa

was the fourth head of the late Hōjō clan, and daimyo of Odawara.Ujimasa commanded in many battles, consolidating his clan's position, and retired in 1590. His son Hōjō Ujinao became head of the clan and lord of Odawara, but later that year they failed to hold Odawara against the forces of Toyotomi...

 with a small force to attack the Satomi rear, surrounding him. In the ensuing battle, Satomi saw his son Chokuro killed by Matsuda Yasuyoshi, a Hōjō retainer; after the battle, feeling remorse at killing such a young boy, Matsuda entered the clergy.

Hōjō Ujiyasu celebrated his victory with a poem:

Conquering the foe

As I wished at Kōnodai

Now do I behold

The evening sunshine of Katsuura