was the 7th 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...

of Mutsuura Domain

Mutsuura Domain

' was a Japanese feudal domain of the Edo period, located in southern Musashi Province in what is now part of Kanagawa Prefecture. Mutsuura was a Fudai domain. It consisted of two separate geographic areas, one in Kuragi District, Musashi, and the other in Osumi District, Sagami, with its...

 in southern Musashi Province

Musashi Province

was a province of Japan, which today comprises Tokyo Prefecture, most of Saitama Prefecture and part of Kanagawa Prefecture. It was sometimes called . The province encompassed Kawasaki and Yokohama...

, Honshū

Honshu

is the largest island of Japan. The nation's main island, it is south of Hokkaido across the Tsugaru Strait, north of Shikoku across the Inland Sea, and northeast of Kyushu across the Kanmon Strait...

, 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...

 (modern-day Kanazawa-ku, Yokohama

Kanazawa-ku, Yokohama

is one of the 18 wards of the city of Yokohama in Kanagawa Prefecture, Japan. As of 2010, the ward had an estimated population of 209,565 and a density of 6,760 persons per km². The total area was 31.01 km². The ward symbol, established 1987, expresses the image of sea, waves, and a sea...

, Kanagawa prefecture

Kanagawa Prefecture

is a prefecture located in the southern Kantō region of Japan. The capital is Yokohama. Kanagawa is part of the Greater Tokyo Area.-History:The prefecture has some archaeological sites going back to the Jōmon period...

) and 10th head of the Yonekura clan

Yonekura clan

The was a cadet branch of the Takeda clan of Kai Province, some members of whom rose to positions of importance within the administration of the Tokugawa shogunate in mid-Edo period Japan....

. His courtesy title was Tango-no-kami.

Biography

Yonekura Masanaga was born as the 3rd son of Kutsuki Masatsuna

Kutsuki Masatsuna

, also known as Kutsuki Oki-no kami Minamoto-no Masatsuna, was a hereditary Japanese daimyo of Oki and Ōmi with holdings in Tamba and Fukuchiyama. His warrior clan was amongst the hereditary vassals of the Tokugawa family in the Edo period...

, daimyō of Fukuchiyama Domain in Tango Province

Tango Province

was an old province in the area that is today northern Kyoto Prefecture facing the Sea of Japan. It was sometimes called , with Tamba Province. Tango bordered on Tajima, Tamba, and Wakasa provinces....

. In 1812, on the death of the 6th daimyō of Mutsuura Domain (Yonekura Masanori), he was adopted into the Yonekura clan

Yonekura clan

The was a cadet branch of the Takeda clan of Kai Province, some members of whom rose to positions of importance within the administration of the Tokugawa shogunate in mid-Edo period Japan....

. In June 1812, he was presented before Shogun

Shogun

A was one of the hereditary military dictators of Japan from 1192 to 1867. In this period, the shoguns, or their shikken regents , were the de facto rulers of Japan though they were nominally appointed by the emperor...

 Tokugawa Ienari

Tokugawa Ienari

Tokugawa Ienari; 徳川 家斉 was the eleventh and longest serving shogun of the Tokugawa shogunate of Japan who held office from 1787 to 1837.-First wife:...

 and confirmed as the daimyō of Mutsuura.

As daimyō, Yonekura Masanaga was assigned to several ceremonial postings as guard of various gates to Edo Castle

Edo Castle

, also known as , is a flatland castle that was built in 1457 by Ōta Dōkan. It is located in Chiyoda in Tokyo, then known as Edo, Toshima District, Musashi Province. Tokugawa Ieyasu established the Tokugawa shogunate here. It was the residence of the shogun and location of the shogunate, and also...

. On June 24, 1860 he turned his titles over to his 6th son, Yonekura Masakoto

Yonekura Masakoto

was the 8th and final daimyō of Mutsuura Domain in southern Musashi Province, Honshū, Japan during the Bakumatsu period.-Biography:Yonekoto Masakoto was the 6th son of the 7th daimyō of Mutsuura Domain, Yonekura Masanaga...

, and went into retirement. He died three years later on May 7, 1863 at the age of 71.

His grave is at the temple of Hase-dera in Shibuya, Tokyo

Shibuya, Tokyo

is one of the 23 special wards of Tokyo, Japan. As of 2008, it has an estimated population of 208,371 and a population density of 13,540 persons per km². The total area is 15.11 km²....

.

Masanaga had six sons and two daughters his official wife, a daughter of Manabe Akihiro, daimyō of Sabae Domain

Sabae Domain

The ' was a Japanese domain of the Edo period, located in Echizen Province. It was ruled by the Manabeclan....

, as well as 2 sons and 2 daughters through a concubine, the daughter of Itakura Katsunaga, daimyō of Fukushima Domain

Fukushima Domain

The ' was a Japanese domain of the Edo period, located in southern Mutsu Province . Castle location was the . Feudal lords were the Honda clan, the Hotta clan, and the Itakura clan. All of them were Fudai daimyos....

 in Mutsu Province

Mutsu Province

was an old province of Japan in the area of Fukushima, Miyagi, Iwate and Aomori prefecture and the municipalities of Kazuno and Kosaka in Akita Prefecture...