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Nagai Naomasa (永井 尚政, 1587 – October 16, 1668) was a Japanese daimyō of the Edo period, who ruled the Uruido, Koga and Yodo Domains. The eldest son of Nagai Naokatsu, he fought at the Battle of Sekigahara and the siege of Osaka. During the Shimabara Rebellion he was assigned to defend Kyoto.
Naomasa held junior 4th court rank, lower grade (従四位下, ju shii no ge) and the title of Shinano no Kami. He retired in early 1658 and became a monk, taking the name Shinsai.
References
- (in Japanese) Yodo domain on "Edo 300 HTML" (11 December 2007)
- (in Japanese) "Nagai hon-ke" (11 December 2007)
| Preceded bynone | First Daimyō of Uruido (Nagai) 1619–1626 |
Succeeded bynone |
| Preceded byNagai Naokatsu | Second Daimyō of Koga (Nagai) 1626–1633 |
Succeeded byDoi Toshikatsu |
| Preceded byMatsudaira Sadatsuna | First Daimyō of Yodo (Nagai) 1633–1658 |
Succeeded byNagai Naoyuki |
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