The 1569 siege of Kakegawa was one of many battles fought by the Imagawa clan

Imagawa clan

The was a Japanese clan that claimed descent from Emperor Seiwa . It was a branch of the Minamoto clan by the Ashikaga clan.-Origins:Ashikaga Kuniuji, grandson of Ashikaga Yoshiuji, established himself in the 13th century at Imagawa and took its name.Imagawa Norikuni received from his cousin the...

 against various invaders during Japan's Sengoku period

Sengoku period

The or Warring States period in Japanese history was a time of social upheaval, political intrigue, and nearly constant military conflict that lasted roughly from the middle of the 15th century to the beginning of the 17th century. The name "Sengoku" was adopted by Japanese historians in reference...

.

Imagawa Ujizane

Imagawa Ujizane

was a Japanese daimyo who lived from the mid-Sengoku through early Edo periods. He was the son of Imagawa Yoshimoto, and the father of Imagawa Norimochi and Shinagawa Takahisa.-Early life:Ujizane was born in Sunpu; he was the eldest son of Imagawa Yoshimoto...

, the son of the late Imagawa Yoshimoto

Imagawa Yoshimoto

was one of the leading daimyo in the Sengoku period Japan. Based in Suruga Province, he was one of the three daimyo that dominated the Tōkaidō region. He was one of the dominant daimyo in Japan for a time, until his death in 1560....

, held Kakegawa castle

Kakegawa Castle

is a hirayama-style Japanese castle. It was the seat of various fudai daimyō who ruled over Kakegawa Domain, Tōtōmi Province, in what is now central Kakegawa, Shizuoka Prefecture, Japan.-History:...

 at the time that it was besieged by Tokugawa Ieyasu

Tokugawa Ieyasu

 was the founder and first shogun of the Tokugawa shogunate of Japan , which ruled from the Battle of Sekigahara  in 1600 until the Meiji Restoration in 1868. Ieyasu seized power in 1600, received appointment as shogun in 1603, abdicated from office in 1605, but...

. After a long battle, negotiations began, and Ujizane agreed to surrender the castle in return for the support of Ieyasu in regaining his former territory in Suruga province

Suruga Province

was an old province in the area that is today the central part of Shizuoka prefecture. It was sometimes called . Suruga bordered on Izu, Kai, Sagami, Shinano, and Tōtōmi provinces; and had access to the Pacific Ocean through Suruga Bay.-History:...

.