| Beatrice Bhadrayuvadi | |
| Full Name: | Her Royal Highness Princess Beatrice Bhadrayuvadi |
| House: | Chakri Dynasty |
| Mother: | Saeng Kalyanamit |
| Birth Date: | 5 December 1876 |
| Birth Place: | Grand Palace Bangkok, Siam |
| Death Place: | Bangkok, Siam |
Princess Beatrice Bhadrayuvadi (Thai: บีเอตริศภัทรายุวดี; ; 5 December 1876 - 30 September 1913), was a Princess of Siam (later Thailand). She was a member of Siamese Royal Family and a daughter of Chulalongkorn, also known as Rama V.[1]
Her name was given by her father, King Chulalongkorn, in honour of British Queen Victoria's daughter, The Princess Beatrice. Her mother was The Noble Consort (Chao Chom Manda) Saeng Kalyanamitra (daughter of Phraya Jayavichit, son of Chao Phraya Nikara Bodindra (To) who built Kalyanamitra Temple. Princess Beatrice Bhadrayuvadi had 3 full siblings; 2 elder brothers and 1 younger sister;
Princess Beatrice listened to Dhamma sermons and wrote down what she remembered so that others could learn from her notes.
Princess Beatrice Bhadrayuvadi died 30 September 1913, aged 36.
| Princess Beatrice Bhadrayuvadi | Father: Chulalongkorn, King Rama V of Siam | Paternal Grandfather: Mongkut, King Rama IV of Siam | Paternal Great-grandfather: Buddha Loetla Nabhalai, King Rama II of Siam |
| Paternal Great-grandmother: Queen Sri Suriyendra | |||
| Paternal Grandmother: Queen Debsirindra | Paternal Great-grandfather: Prince Sirivongse, the Prince Matayabidaksa | ||
| Paternal Great-grandmother: Mom Noi Sirivongs na Ayudhya | |||
| Mother: Chao Chom Manda Saeng Kalyanamitra | Maternal Grandfather: Phraya Jayavichit | Maternal Great-grandfather: Chao Phraya Nikara Bodindra | |
| Maternal Great-grandmother: unknown | |||
| Maternal Grandmother: unknown | Maternal Great-grandfother: unknown | ||
| Maternal Great-grandmother: unknown |