Shibata Nagaatsu (新発田 長敦, 1538 – 1580), was a Japanese military commander who served under the warlord Uesugi Kenshin, one of the Twenty-Eight Generals of Uesugi.
[1] The son of Shibata Tsunasada and the elder brother of Shibata Shigeie (Shibata Harunaga), Nagaatsu served under Kenshin from the latter's earliest campaigns.
Nagaatsu began serving Kenshin at a very young age and fought in many of his battles.
In 1578, during the Siege of Otate, the succession struggle that followed Kenshin's death, Nagaatsu supported Kenshin's son Kagekatsu.
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