was a Japanese

samurai The samurai () were members of the warrior class in Japan. They were originally provincial warriors who came from wealthy landowning families who could afford to train their men to be mounted archers. In the 8th century AD, the imperial court d ...

of the late

Edo period The , also known as the , is the period between 1600 or 1603 and 1868 in the history of Japan, when the country was under the rule of the Tokugawa shogunate and some 300 regional ''daimyo'', or feudal lords. Emerging from the chaos of the Sengok ...

, who served the

Makino clan The are a ''daimyō'' branch of the ''samurai'' Minamoto clan in Edo period Japan.Alpert, Georges. (1888) ''Ancien Japon,'' p. 70./ref> In the Edo period, the Makino were identified as one of the ''fudai'' or insider ''daimyō'' clans which wer ...

of Nagaoka. Kawai was a senior military commander of Nagaoka forces during the

Boshin War The , sometimes known as the Japanese Revolution or Japanese Civil War, was a civil war in Japan fought from 1868 to 1869 between forces of the ruling Tokugawa shogunate and a coalition seeking to seize political power in the name of the Impe ...

of 1868–1869. He escaped to nearby

Aizu is the westernmost of the three regions of Fukushima Prefecture, Japan, the other two regions being Nakadōri in the central area of the prefecture and Hamadōri in the east. As of October 1, 2010, it had a population of 291,838. The princ ...

after his domain's fall; however, he contracted gangrene from an untreated leg wound, and died in Aizu.

References

*Sasaki Suguru (2002). ''Boshin sensō: haisha no Meiji ishin.'' Tokyo: Chūōkōron-shinsha. 1827 births 1868 deaths People of the Boshin War Samurai Karō People from Nagaoka Domain Deaths from gangrene 19th-century Japanese philosophers {{samurai-stub