was a 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...

ese 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 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....

, who ruled the Iwakidaira Domain

Iwakidaira Domain

The was a Japanese domain of the Edo period, located in southern Mutsu Province. It was ruled by the Andō clan.-List of lords:*Torii clan #Tadamasa*Naitō clan #Masanaga#Tadaoki#Yoshimune#Yoshitaka#Yoshishige...

. He was a rōjū

Roju

The ', usually translated as Elder, was one of the highest-ranking government posts in Tokugawa Japan. The term refers either to individual Elders, or to the Council as a whole; under the first two shoguns, there were only two Rōjū...

 in the Tokugawa shogunate

Tokugawa shogunate

The Tokugawa shogunate, also known as the and the , was a feudal regime of Japan established by Tokugawa Ieyasu and ruled by the shoguns of the Tokugawa family. This period is known as the Edo period and gets its name from the capital city, Edo, which is now called Tokyo, after the name was...

, and was active in the wake of Ii Naosuke

Ii Naosuke

was daimyo of Hikone and also Tairō of Tokugawa Shogunate, Japan, a position he held from April 23, 1858 until his death on March 24, 1860. He is most famous for signing the Harris Treaty with the United States, granting access to ports for trade to American merchants and seamen and...

's assassination. Andō himself was the target of an assassination attempt, which is remembered as the Sakashitamon Incident.

In 1868, during the Boshin War

Boshin War

The was a civil war in Japan, fought from 1868 to 1869 between forces of the ruling Tokugawa shogunate and those seeking to return political power to the imperial court....

, Nobumasa took charge of the governance of Iwakidaira, and led its forces as part of the Northern Alliance (the Ōuetsu Reppan Dōmei

Ouetsu Reppan Domei

-External links:**...

).

Incident at outside of Sakashita gate

In 1862, Six samurai from Mito Domain

Mito Domain

was a prominent feudal domain in Japan during the Edo period. Its capital was the city of Mito, and it covered much of present-day Ibaraki Prefecture. Beginning with the appointment of Tokugawa Yorifusa by his father, Shogun Tokugawa Ieyasu, in 1608, the Mito branch of the Tokugawa clan...

 attempted to assassinate Ando at the outside of Sakashita gate, 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...

. Ando barely survived from the attempt. Rutherford Alcock

Rutherford Alcock

Sir Rutherford Alcock KCB was the first British diplomatic representative to live in Japan.-Early life:Alcock was the son of the physician, Dr. Thomas Alcock, who practised at Ealing, near London. As he grew up, Alcock followed his father into the medical profession...

was impressed that Ando appeared with his body bandaged and showing his spirit as an authority of the country just after Ando was heavily injured.