Queen Saovabha Phongsri was the mother of Chulalongkorn, King Rama V of Siam. She was the second wife of King Mongkut and the mother of most of his children. She was a strong and influential figure in the court, and she played a major role in the modernization of Siam.
The Glorious Reign of King Chulalongkorn: A Fascinating English Quiz