was a Japanese samurai of the

Sengoku period The was a period in History of Japan, Japanese history of near-constant civil war and social upheaval from 1467 to 1615. The Sengoku period was initiated by the Ōnin War in 1467 which collapsed the Feudalism, feudal system of Japan under the ...

. A high-ranking retainer of the

Uesugi clan The is a Japanese samurai clan which was at its peak one of the most powerful during the Muromachi and Sengoku periods (14th to 17th centuries). Appert, Georges. (1888) ''Ancien Japon,'' p. 79./ref> At its height, the clan had three main branch ...

. Katsunaga was one of the ''Kita-Echigo no Kokuninshu'' (北越後の国人衆; "Countrymen of Northern Echigo"), and was considered one of the most respected men under

Uesugi Kenshin , later known as was a Japanese ''daimyō''. He was born in Nagao clan, and after adoption into the Uesugi clan, ruled Echigo Province in the Sengoku period of Japan. He was one of the most powerful ''daimyō'' of the Sengoku period. Known a ...

.?í?‘•??«Šo?‘ ƒ‚¢ „
He saw action at the 4th

Battle of Kawanakajima The were a series of battles fought in the Sengoku period of Japan between Takeda Shingen of Kai Province and Uesugi Kenshin of Echigo Province from 1553 to 1564. Shingen and Kenshin contested each other for control of the plain of Kawanakaj ...

of 1561 and the Siege of Karasawa at

Sano, Tochigi is a city located in Tochigi Prefecture, Japan. , the city had an estimated population of 117,669, in 52,066 households and a population density of 330 persons per km2. The total area of the city is . The city is known for its Outlet Mall, S ...

in the region of Kōzuke in 1563 among others. For his distinction in battle at Kawanakajima he was granted Hirabayashi Castle.平林城埋もれた古城
/ref> Katsunaga died when attempting to confront the uprising of

Honjō Shigenaga was a Japanese Samurai who lived from the Azuchi–Momoyama period through to the Edo period. Shigenaga served the Uesugi clan and was known for his betrayal against them. He held the court title '' Echizen no kami''. Biography Shigenaga fo ...

in 1569. His sons included Irobe Akinaga and Irobe Nagazane.

References

External links

History of Hirabayashi Castle
(in Japanese)

(in Japanese) Samurai 1569 deaths Uesugi retainers Year of birth uncertain {{samurai-stub