was a Japanese daimyo

Daimyo

is a generic term referring to the powerful territorial lords in pre-modern Japan who ruled most of the country from their vast, hereditary land holdings...

 of the late Sengoku

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...

 through early Edo period

Edo period

The , or , is a division of Japanese history which was ruled by the shoguns of the Tokugawa family, running from 1603 to 1868. The political entity of this period was the Tokugawa shogunate....

. He was known as Ōura Tamenobu earlier on in his life. Tamenobu had at one time battled against Nanbu Nobunao

Nanbu Nobunao

' was a Japanese daimyo of the Sengoku period. He succeeded his father as head of the Nanbu clan and was a prominent figure in the local warfare which took place in northern Japan, and was the father of Nanbu Toshinao, the first daimyo of the Morioka Domain....

. Following this, Tamenobu submitted to Toyotomi Hideyoshi

Toyotomi Hideyoshi

was a daimyo warrior, general and politician of the Sengoku period. He unified the political factions of Japan. He succeeded his former liege lord, Oda Nobunaga, and brought an end to the Sengoku period. The period of his rule is often called the Momoyama period, named after Hideyoshi's castle...

 and fought against the Hōjō

Hojo

Hōjō may refer to:*Hōjō clan, a family of regents of the Kamakura Shogunate*Late Hōjō clan, daimyo in the Sengoku Period*Hōjō, Ehime, a city in Japan*Hōjō, one of the five kata of Kashima Shinden Jikishinkage-ryū...

 during the siege of Odawara. It was at this time that Tamenobu took the name of Tsugaru. Tamenobu followed in capturing Namioka Castle during the year 1590. During the Azuchi-Momoyama period

Azuchi-Momoyama period

The came at the end of the Warring States Period in Japan, when the political unification that preceded the establishment of the Tokugawa shogunate took place. It spans the years from approximately 1573 to 1603, during which time Oda Nobunaga and his successor, Toyotomi Hideyoshi, imposed order...

 of the 17th century, Tamenobu supported the Tokugawa

Tokugawa clan

The was a powerful daimyo family of Japan. They nominally descended from Emperor Seiwa and were a branch of the Minamoto clan by the Nitta clan. However, the early history of this clan remains a mystery.-History:...

 following the Sekigahara Campaign of 1600, at which point his revenues increased to 47,000 koku

Koku

The is a Japanese unit of volume, equal to ten cubic shaku. In this definition, 3.5937 koku equal one cubic metre, i.e. 1 koku is approximately 278.3 litres. The koku was originally defined as a quantity of rice, historically defined as enough rice to feed one person for one year...

.