was a commander and ''

daimyō were powerful Japanese magnates, feudal lords who, from the 10th century to the early Meiji period in the middle 19th century, ruled most of Japan from their vast, hereditary land holdings. They were subordinate to the shogun and nominall ...

'' in the service of

Tokugawa Ieyasu was the founder and first ''shōgun'' of the Tokugawa Shogunate of Japan, which ruled Japan from 1603 until the Meiji Restoration in 1868. He was one of the three "Great Unifiers" of Japan, along with his former lord Oda Nobunaga and fello ...

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the n ...

during the Azuchi-Momoyama and

Edo period The or is the period between 1603 and 1867 in the history of Japan, when Japan was under the rule of the Tokugawa shogunate and the country's 300 regional '' daimyo''. Emerging from the chaos of the Sengoku period, the Edo period was character ...

s. In 1563, when an uprising against Ieyasu occurred in Mikawa Province, Masanobu took the side of the peasants against Ieyasu at Battle of Batogahara. He fled from the Tokugawa, rejoining them in the 1570s or 1580s at the behest of Ōkubo Tadayo, and accompanied Ieyasu as he crossed

Iga Province was a province of Japan located in what is today part of western Mie Prefecture. Nussbaum, Louis-Frédéric. (2005). "Iga" in . Its abbreviated name was . Iga is classified as one of the provinces of the Tōkaidō. Under the '' Engishiki'' cl ...

following the assassination of Oda Nobunaga at Honnō-ji. In 1600, Masanobu joined

Tokugawa Hidetada was the second ''shōgun'' of the Tokugawa dynasty, who ruled from 1605 until his abdication in 1623. He was the third son of Tokugawa Ieyasu, the first ''shōgun'' of the Tokugawa shogunate. Early life (1579–1593) Tokugawa Hidetada was bo ...

's army for the march along the

Nakasendō The , also called the ,Richard Lane, ''Images from the Floating World'' (1978) Chartwell, Secaucus ; pg. 285 was one of the five routes of the Edo period, and one of the two that connected Edo (modern-day Tokyo) to Kyoto in Japan. There were 69 ...

. En route, however, Hidetada attacked Sanada Masayuki at

Ueda Castle is a Japanese castle located in Ueda, northern Nagano Prefecture, Japan. At the end of the Edo period, Ueda Castle was home to a cadet branch of the Matsudaira clan, ''daimyō'' of Ueda Domain, but the castle is better known for its association ...

against Masanobu's advice, and together they arrived late for the

Battle of Sekigahara The Battle of Sekigahara (Shinjitai: ; Kyūjitai: , Hepburn romanization: ''Sekigahara no Tatakai'') was a decisive battle on October 21, 1600 ( Keichō 5, 15th day of the 9th month) in what is now Gifu prefecture, Japan, at the end of ...

. Masanobu was a member of the

Tokugawa shogunate The Tokugawa shogunate (, Japanese 徳川幕府 ''Tokugawa bakufu''), also known as the , was the military government of Japan during the Edo period from 1603 to 1868. Nussbaum, Louis-Frédéric. (2005)"''Tokugawa-jidai''"in ''Japan Encyclopedia ...

and ruled a Han in

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

assessed at 22,000 ''

koku The is a Chinese-based Japanese unit of volume. 1 koku is equivalent to 10 or approximately , or about . It converts, in turn, to 100 shō and 1000 gō. One ''gō'' is the volume of the "rice cup", the plastic measuring cup that is supplied ...

''. He was present at the

siege of Osaka The was a series of battles undertaken by the Japanese Tokugawa shogunate against the Toyotomi clan, and ending in that clan's destruction. Divided into two stages (winter campaign and summer campaign), and lasting from 1614 to 1615, the sie ...

in 1614. Masanobu died several weeks after Ieyasu in 1616.

References

Further reading