Sunanda Kumariratana
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| Queen consort of Siam | |||||||||
| Tenure | 1877 – 31 May 1880 | ||||||||
| Born | 10 November 1860 Bangkok, Siam | ||||||||
| Died | 31 May 1880 (aged 19) Pak Kret, Siam | ||||||||
| Spouse | Chulalongkorn (Rama V) | ||||||||
| Issue | Kannabhorn Bejaratana | ||||||||
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| House | Chakri dynasty | ||||||||
| Father | Mongkut (Rama IV) | ||||||||
| Mother | Piam Sucharitakul | ||||||||
Sunanda Kumariratana (Thai: สุนันทากุมารีรัตน์, RTGS: Sunantha Kumarirat, Sunandākumārīratana; 10 November 1860 – 31 May 1880) was a queen consort of Siam. She was one of the four royal wives of King Chulalongkorn.