a retainer of the Japanese clan of Minamoto

Minamoto clan

was one of the surnames bestowed by the Emperors of Japan upon members of the imperial family who were demoted into the ranks of the nobility. The practice was most prevalent during the Heian Period , although its last occurrence was during the Sengoku Era. The Taira were another such offshoot of...

 during the Heian period

Heian period

The is the last division of classical Japanese history, running from 794 to 1185. The period is named after the capital city of Heian-kyō, or modern Kyōto. It is the period in Japanese history when Buddhism, Taoism and other Chinese influences were at their height...

 (12th century) of Japan. Nagakiyo became rather famous for being the founder of the well known clan of Japan, the Ogasawara

Ogasawara clan

The was a Japanese samurai clan descended from the Seiwa Genji. The Ogasawara acted as shugo of Shinano province in the medieval period The was a Japanese samurai clan descended from the Seiwa Genji. The Ogasawara acted as shugo (governors) of Shinano province in the medieval period The was a...

. Nagakiyo was born within the prefecture of Yamanashi

Yamanashi Prefecture

is a prefecture of Japan located in the Chūbu region of the island of Honshū. The capital is the city of Kōfu.-Pre-history to the 14th century:People have been living in the Yamanashi area for about 30,000 years...

. Nagakiyo became a very well known tutor under the famous Minamoto no Yoritomo

Minamoto no Yoritomo

was the founder and the first shogun of the Kamakura Shogunate of Japan. He ruled from 1192 until 1199.-Early life and exile :Yoritomo was the third son of Minamoto no Yoshitomo, heir of the Minamoto clan, and his official wife, a daughter of Fujiwara no Suenori, who was a member of the...

 when at the age of 26, instructing Yoritomo in the ways of martial and archery arts. Nagakiyo would also pass his skills on to his son, Ogasawara Nagatsune

Ogasawara Nagatsune

in the province of Shinano. He was the eldest son of Ogasawara Nagakiyo and the rightful inheritor of the art of Ogasawara-ryu archery and mounted archery.His wife was a daughter of Takeda Tomonobu...

 during the period of the Kamakura Shogunate

Kamakura shogunate

The Kamakura shogunate was a military dictatorship in Japan headed by the shoguns from 1185 to 1333. It was based in Kamakura. The Kamakura period draws its name from the capital of the shogunate...

. During the Sengoku period

Sengoku period

The or Warring States period in Japanese history was a time of social upheaval, political intrigue, and nearly constant military conflict that lasted roughly from the middle of the 15th century to the beginning of the 17th century. The name "Sengoku" was adopted by Japanese historians in reference...

 (16th century) the Ogasawara would serve under the Ashikaga Shogunate

Ashikaga shogunate

The , also known as the , was a Japanese feudal military regime, ruled by the shoguns of the Ashikaga clan.This period is also known as the Muromachi period and gets its name from Muromachi Street of Kyoto where the third shogun Ashikaga Yoshimitsu established his residence...

 and then serve under 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...

 in the 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....

(17th century).