Sakai Tadazumi
| Sakai Tadazumi | |
|---|---|
| 酒井忠篤 | |
| Sakai Tadazumi | |
| 11th Daimyō of Shōnai Domain | |
| In office 1862–1868 | |
| Monarchs | Shōgun | 
| Preceded by | Sakai Tadatomo | 
| Succeeded by | Sakai Tadamichi | 
| Personal details | |
| Born | March 22, 1853 | 
| Died | June 6, 1915 (aged 62) | 
| Spouse(s) | Shizu, daughter of Tokugawa Yoshinori of the Tayasu-Tokugawa | 
| Parent | 
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Sakai Tadazumi (酒井忠篤; March 22, 1853 – June 6, 1915) was the 11th daimyō of Shōnai Domain during Bakumatsu period Japan. His courtesy title was Saemon-no-jō.