was a Japanese 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...

 during the Azuchi-Momoyama period

Azuchi-Momoyama period

The came at the end of the Warring States Period in Japan, when the political unification that preceded the establishment of the Tokugawa shogunate took place. It spans the years from approximately 1573 to 1603, during which time Oda Nobunaga and his successor, Toyotomi Hideyoshi, imposed order...

 and 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....

s. A native of Mikawa Province

Mikawa Province

is an old province in the area that today forms the eastern half of Aichi Prefecture. It was sometimes called . Mikawa bordered on Owari, Mino, Shinano, and Tōtōmi Provinces....

, Kiyonaga served the Tokugawa clan

Tokugawa clan

The was a powerful daimyo family of Japan. They nominally descended from Emperor Seiwa and were a branch of the Minamoto clan by the Nitta clan. However, the early history of this clan remains a mystery.-History:...

 during its battles, until 1600.

Born in Mikawa, Kiyonaga first served Tokugawa Ieyasu in 1552. In Mikawa, he served as one of Ieyasu's three magistrates (san-bugyō), together with Amano Yasukage

Amano Yasukage

was a Japanese daimyo of the Sengoku period through early Edo period, who served the Tokugawa clan. He ruled the Kōkokuji Domain as a private fief....

 and Honda Shigetsugu

Honda Shigetsugu

, also known as , was a Japanese samurai of the Sengoku period through Azuchi-Momoyama Period, who served the Tokugawa clan. He fought in many of the Tokugawa clan's major battles, and was known as for his ferocity....

. Yasukage was known for his patience, Shigetsugu for his fortitude, and Kiyonaga for his leniency; this leniency earned him the nickname of "Buddha Kōriki" (Hotoke

Hotoke

The Japanese noun Note that the very same kanji 仏 in modern Japanese can be also read futsu, but is often used as an abbreviation for the word "furansu", or France...

 Kōriki 仏高力).

Kiyonaga was also active in various battles. He transported provisions to Otaka castle at the Battle of Okehazama

Battle of Okehazama

The took place in June 1560. In this battle, Oda Nobunaga defeated Imagawa Yoshimoto and established himself as one of the front-running warlords in the Sengoku period.-Background:...

, helped suppress the Ikkō-ikki

Ikko-ikki

', literally "Ikkoshū Uprising", were mobs of peasant farmers, Buddhist monks, Shinto priests and local nobles, who rose up against samurai rule in 15th to 16th century Japan. They followed the beliefs of the Jōdo Shinshū sect of Buddhism which taught that all believers are equally saved by Amida...

 of Mikawa Province, joined in the pacification of Tōtōmi Province

Totomi Province

was a province of Japan in the area of Japan that is today western Shizuoka Prefecture. Tōtōmi bordered on Mikawa, Suruga and Shinano Provinces. Its abbreviated form name was .-History:...

, and took part in the Battle of Komaki and Nagakute

Battle of Komaki and Nagakute

The consisted of two battles in 1584 between the forces of Hashiba Hideyoshi and the forces of Oda Nobukatsu and Tokugawa Ieyasu. Hideyoshi and Ieyasu had both served Oda Nobunaga and had not previously come into conflict; this would in fact be their only period of enmity...

. Kiyonaga also assisted with ship construction for the Seven-Year War.

Kiyonaga became a 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...

 in 1590, when he was granted the 20,000 koku

Koku

The is a Japanese unit of volume, equal to ten cubic shaku. In this definition, 3.5937 koku equal one cubic metre, i.e. 1 koku is approximately 278.3 litres. The koku was originally defined as a quantity of rice, historically defined as enough rice to feed one person for one year...

 fief of Iwatsuki

Iwatsuki Domain

The ' was a Japanese domain of the Edo period. Located in Musashi Province , it was headquartered in Iwatsuki Castle.-List of daimyo:*Kōriki clan #Kiyonaga#Masanaga#Tadafusa...

. As he was preceded in death by his son Masanaga

Koriki Masanaga

was a Japanese daimyo of the Azuchi-Momoyama period, who ruled the Iwatsuki Domain. Masanaga, like his father Kiyonaga, served the Tokugawa clan.Masanaga died in 1599, and was succeeded by his son Tadafusa....

, Kiyonaga retired after the Sekigahara

Battle of Sekigahara

The , popularly known as the , was a decisive battle on October 21, 1600 which cleared the path to the Shogunate for Tokugawa Ieyasu...

, and passed down family headship to his grandson Tadafusa.