Okubo Tadayo - AbsoluteAstronomy.com

was a samurai

Samurai

is the term for the military nobility of pre-industrial Japan. According to translator William Scott Wilson: "In Chinese, the character 侍 was originally a verb meaning to wait upon or accompany a person in the upper ranks of society, and this is also true of the original term in Japanese, saburau...

general in the service of 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...

in 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...

, subsequently becoming a daimyō
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...

in 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....

, Japan

Japan

Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

.

Ōkubo Tadayo was the eldest son of Ōkubo Tadakazu, a hereditary retainer of the Tokugawa clan

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:...

. He was born in what is now part of the city of Okazaki

Okazaki, Aichi

is a city located in Aichi Prefecture, Japan. As of August 2011, the city had an estimated population of 373,339 and a population density of 964 persons per km². The total area was 387.24 km².-Geography:...

in Mikawa Province

Mikawa Province

is an old province in the area that today forms the eastern half of Aichi Prefecture. It was sometimes called . Mikawa bordered on Owari, Mino, Shinano, and Tōtōmi Provinces....

, and accompanied Tokugawa Ieyasu in all of his campaigns, including the Battle of Mikatagahara

Battle of Mikatagahara

The ' was one of the most famous battles of Takeda Shingen's campaigns, and one of the best demonstrations of his cavalry-based tactics.-Background:...

(1573) and Battle of Nagashino

Battle of Nagashino

The ' took place in 1575 near Nagashino Castle on the plain of Shitaragahara in the Mikawa province of Japan. Forces under Takeda Katsuyori had besieged the castle since the 17th of June; Okudaira Sadamasa , a Tokugawa vassal, commanded the defending force...

(1575). Nicknamed , he rose to become considered one of Ieyasu's sixteen generals and was entrusted with Futamata Castle in Tōtōmi Province

Totomi Province

was a province of Japan in the area of Japan that is today western Shizuoka Prefecture. Tōtōmi bordered on Mikawa, Suruga and Shinano Provinces. Its abbreviated form name was .-History:...

. Upon the assassination of Oda Nobunaga

Oda Nobunaga

was the initiator of the unification of Japan under the shogunate in the late 16th century, which ruled Japan until the Meiji Restoration in 1868. He was also a major daimyo during the Sengoku period of Japanese history. His opus was continued, completed and finalized by his successors Toyotomi...

in 1582, Ieyasu expanded his rule into Shinano Province

Shinano Province

or is an old province of Japan that is now present day Nagano Prefecture.Shinano bordered on Echigo, Etchū, Hida, Kai, Kōzuke, Mikawa, Mino, Musashi, Suruga, and Tōtōmi Provinces...

, with Ōkubo Tadayo assigned to managing the campaign from his base at Komoro Castle

Komoro Castle

is a hirayamashiro located in Komoro, Nagano Prefecture, Japan. The castle was constructed in 1554 by Takeda Shingen. In 1590, Sengoku Hidehisa became the lord. He was followed by his son, Sengoku Tadamasa. Tadamasa improved the castle, and the tenshu 's foundation dates from this time. The tenshu...

. After the Battle of Odawara

Siege of Odawara (1590)

The third ' occurred in 1590, and was the primary action in Toyotomi Hideyoshi's campaign to eliminate the Hōjō clan as a threat to his power. The months leading up to it saw hasty but major improvements in the defense of the castle, as Hideyoshi's intentions became clear...

(1590), Ieyasu was transferred from the Tōkai region

Tokai region

The is a sub-region of the Chūbu region in Japan that runs along the Pacific Ocean. The name means "East sea" and comes from the Tōkaidō, one of the Edo Five Routes...

to the provinces of the Kantō region

Kanto region

The is a geographical area of Honshu, the largest island of Japan. The region includes the Greater Tokyo Area and encompasses seven prefectures: Gunma, Tochigi, Ibaraki, Saitama, Tokyo, Chiba, and Kanagawa. Within its boundaries, slightly more than 40 percent of the land area is the Kantō Plain....

. 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...

ordered that Ōkubo Tadayo be raised at that point to the status of daimyō, and was assigned the fief of Odawara

Odawara Domain

was a Japanese domain of the Edo period, located in western Sagami Province. It was centered on Odawara Castle in what is now the city of Odawara.-History:...

, with an income of 45,000 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...

. He continued to rule in Odawara until his death in 1594, and was succeeded by his son, Ōkubo Tadachika

Okubo Tadachika

was daimyō of Odawara Domain in Sagami Province in early Edo period, Japan.Ōkubo Tadachika was the son of Ōkubo Tadayo, a hereditary vassal to the Tokugawa clan in what is now part of the city of Okazaki, Aichi. He entered into service as a samurai frm age 11, and took his first head in battle at...

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