Birth at the Old Thonburi Palace
· Thonburi Palace, Bangkok, Siam (now Thailand)

Wikimedia Commons · CC BY 4.0 · file Mongkut was born at the Old Thonburi Palace, then in Siam. This is the opening fixed point of his documented life chronology. Coordinates identify Thonburi Palace, the article's linked Old (Thonburi) Palace.