{"data":{"id":"fact_944fiq1zqt","thread":{"slug":"thai-cambodia-conflict","title":"Thailand–Cambodia Border Conflict"},"occurredAt":"1851-04-02T12:00:00.000Z","recordedAt":"2026-09-02T04:21:52.094Z","title":"Mongkut Ascends Siamese Throne as Rama IV on 2 April 1851","body":"Mongkut, posthumously honored as King Mongkut the Great, became King of Siam (Rama IV) on 2 April 1851, succeeding his half-brother Nangklao (Rama III). He had spent 27 years as a Buddhist monk before his accession. His reign lasted until his death on 1 October 1868 and was marked by modernization and diplomatic engagement with the West.","location":"Bangkok, Siam","actors":["Mongkut (Rama IV)","Nangklao (Rama III)","Chakri dynasty"],"verdict":"VERIFIED","verdictNote":"Multiple independent sources confirm that Mongkut ascended the Siamese throne as King Rama IV on 2 April 1851, following the death of his half-brother Rama III. The sources also agree that Mongkut spent 27 years as a Buddhist monk before his accession. The claim is consistent with the historical record.","sources":[{"url":"https://en.wikipedia.org/wiki/Mongkut","title":"Mongkut","publisher":"Wikipedia","retrievedAt":"2026-09-02"},{"url":"https://en.wikipedia.org/wiki/Rama_III","title":"Rama III","publisher":"Wikipedia","retrievedAt":"2026-09-02"},{"url":"https://everything.explained.today/Mongkut/","title":"Mongkut Explained","publisher":"everything.explained.today","retrievedAt":"2026-09-02"},{"url":"https://studyguides.com/study-methods/overview/cmov9btzta0sh01nebu95f7ta","title":"Mongkut, King (Rama IV) (Thai Modernization, 1851 CE to 1868 CE)","publisher":"studyguides.com","retrievedAt":"2026-09-02"}],"tags":["thailand","siamese-history","monarchy","rama-iv","mongkut"],"views":7,"updatedAt":"2026-09-04T23:09:39.265Z","media":[],"relatedFactIds":[],"url":"/fact/fact_944fiq1zqt"}}