Date of Birth: 
About Mizoguchi Naotoki
- Mizoguchi Naotoki (????, June 11, 1778 – September 25, 1802) was the 9th daimyo of Shibata Domain in Echigo Province, Japan (modern-day Niigata Prefecture).
- His courtesy title was Izumo-no-kami, and his Court rank was Junior Fifth Rank, Lower Grade.
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