was ''

daimyō were powerful Japanese magnates, feudal lords who, from the 10th century to the early Meiji era, Meiji period in the middle 19th century, ruled most of Japan from their vast hereditary land holdings. They were subordinate to the shogun and no ...

'' of

Odawara Domain file:Odawara 2006-02-21 c.jpg, 250px, Odawara Castle, Headquarters of the Odawara Domain was a Japanese Han (Japan), domain of the Edo period, located primarily in western Sagami Province (modern-day Kanagawa Prefecture). It was centered on Odawa ...

Sagami Province was a Provinces of Japan, province of Japan located in what is today the central and western Kanagawa Prefecture.Louis-Frédéric, Nussbaum, Louis-Frédéric. (2005). "''Kanagawa''" at . Sagami Province bordered the provinces of Izu Province, Izu ...

, (modern-day

Kanagawa Prefecture is a Prefectures of Japan, prefecture of Japan located in the Kantō region of Honshu. Kanagawa Prefecture is the List of Japanese prefectures by population, second-most populous prefecture of Japan at 9,221,129 (1 April 2022) and third-dens ...

) in early

Edo period The , also known as the , is the period between 1600 or 1603 and 1868 in the history of Japan, when the country was under the rule of the Tokugawa shogunate and some 300 regional ''daimyo'', or feudal lords. Emerging from the chaos of the Sengok ...

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

Biography

Ōkubo Tadamasu was a son of Ōkubo Tadatomo, daimyō of Odawara Domain. In 1681, he was appointed a '' Sōshaban'' (Master of Ceremonies) at

Edo Castle is a flatland castle that was built in 1457 by Ōta Dōkan in Edo, Toshima District, Musashi Province. In modern times it is part of the Tokyo Imperial Palace in Chiyoda, Tokyo, and is therefore also known as . Tokugawa Ieyasu established th ...

, and rose to the position of '' Jisha-bugyō'' on July 22, 1685. On December 18, 1687, he concurrently received the position of '' wakadoshiyori'' . Tadamasu became daimyō of Odawara on the retirement of his father in 1698. In November 1703, the Great Genroku earthquake caused severe damage to Edo and to

Odawara is a Cities of Japan, city in Kanagawa Prefecture, Japan. , the city had an estimated population of 188,482 and a population density of 1,700 persons per km2. The total area of the city is . Geography Odawara lies in the Ashigara Plains, in ...

, destroying much of Odawara-juku on the Tōkaidō connecting Edo with

Kyoto Kyoto ( or ; Japanese language, Japanese: , ''Kyōto'' ), officially , is the capital city of Kyoto Prefecture in the Kansai region of Japan's largest and most populous island of Honshu. , the city had a population of 1.46 million, making it t ...

. Despite this disaster, on September 21, 1705, Tadamasu was promoted to the position of

rōjū The , usually translated as ''Elder (administrative title), Elder'', was one of the highest-ranking government posts under the Tokugawa shogunate of Edo period Japan. The term refers either to individual Elders, or to the Council of Elders as a wh ...

under ''

Shōgun , officially , was the title of the military rulers of Japan during most of the period spanning from 1185 to 1868. Nominally appointed by the Emperor, shoguns were usually the de facto rulers of the country, except during parts of the Kamak ...

'' Tokugawa Tsunayoshi. However, further natural disasters followed. On October 4, 1707, the Great Hoei earthquake again devastated Edo and Odawara, destroying much of what had been rebuilt from the earlier disaster. This was followed by the

Hōei eruption of Mount Fuji was a after Genroku and before Shōtoku''.'' This period spanned the years from March 1704 through April 1711. The reigning emperors were and . Etymology ''Hōei'' comes from the Old Book of Tang (). Change of era * 1704 : In reaction to ...

in December, with

volcanic ash Volcanic ash consists of fragments of rock, mineral crystals, and volcanic glass, produced during volcanic eruptions and measuring less than 2 mm (0.079 inches) in diameter. The term volcanic ash is also often loosely used to r ...

raining on Edo and Odawara and repeated earthquakes. The following year the Sakawa River flooded due to sediment build-up resulting from the ash fall, and the crops failed. Some 104 villages in Ashigarakami District and 59 villages in Suntō District were rendered uninhabitable. Tadamasu appealed to the

Tokugawa shogunate The Tokugawa shogunate, also known as the was the military government of Japan during the Edo period from 1603 to 1868. The Tokugawa shogunate was established by Tokugawa Ieyasu after victory at the Battle of Sekigahara, ending the civil wars ...

for assistance, and in response, the government annexed the disaster-struck portions of his territories as ''

tenryō The Tokugawa shogunate, also known as the was the military government of Japan during the Edo period from 1603 to 1868. The Tokugawa shogunate was established by Tokugawa Ieyasu after victory at the Battle of Sekigahara, ending the civil war ...

'' under the direct control of the central government, and provided Tadamasu for new territories with an assessed value of 60,000 ''

koku The is a Chinese-based Japanese unit of volume. One koku is equivalent to 10 or approximately , or about of rice. It converts, in turn, to 100 shō and 1,000 gō. One ''gō'' is the traditional volume of a single serving of rice (before co ...

'' scattered across the provinces of Izu, Mimasaka and Harima. In addition, a special nationwide tax of two gold ''

ryō The was a gold currency unit in the shakkanhō system in pre- Meiji Japan. It was eventually replaced with a system based on the '' yen''. Origins The ''ryō'' was originally a unit of weight from China, the ''tael.'' It came into use in Ja ...

'' for every 100 ''koku'' of rice produced raised 480,000 ''ryō'' for relief efforts. Tadamasu died in 1713. The new territories provided by the shogunate where exchanged back in 1747, but did not regain their former value for another several decades.

References

* Papinot, Edmond. (1906) ''Dictionnaire d'histoire et de géographie du japon''. Tokyo: Librarie Sansaish
..Click link for digitized 1906 ''Nobiliaire du japon'' (2003)
* ''The content of much of this article was derived from that of the corresponding article on Japanese Wikipedia.'' Fudai daimyo Rōjū Tadamasa 1656 births 1713 deaths {{daimyo-stub