CACrown ArchivesThe cinema collection
Menu
Research dossier · General Reference

Suphayok Kasem

prince of Siam

Cross-disciplinary reference desk with index cards, atlas, dictionary and catalogue
General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionJun 10, 2026
Entity authorityQ16141015 ↗
Source-derived summary

Prince Suphayok Kasem (พระวรวงศ์เธอ พระองค์เจ้าศุภโยคเกษม) (29 August 1872 – 1932), formerly known as: Mom Chao Nen Kashemsri (หม่อมเจ้าเณร เกษมศรี), was a son of Prince Kashemsri Subhayok and Mom Poem Kashemsri na Ayudhya, and a former Thai Minister of Finance.

Prince Suphayok-Kasem, formerly known as Mom Chao Naen Kashemsri, was born on 29 August 1872 and studied at Phra Tamnuk Suan Kularb School until he reached the age of 17, whereupon he entered the civil service in the Ministry of Finance, later receiving the rank of Director-General in 1921, alongside being elevated to the rank of 'His Highness' (พระวรวงศ์เธอ พระองค์เจ้า) by the reigning monarch, King Rama VI. He was the only member of the House of Kashemsri with the rank 'His Serene Highness' to be elevated to 'Phra Ong Chao', or His Highness.

Following this, he became the Minister of Finance in 1922, and would continue in office until his resignation from the post in 1929. However, he resumed the position of Minister for a few short months in 1932 before the 1932 Siamese Revolution, when the new revolutionary government removed him from the position five days after the end of the absolute monarchy.

He died 6–7 months later, on 6 January 1933.

Family

Prince Subhayok had three wives according to Siamese custom. Mom Khao, a descendant of King Taksin of Thonburi, was the most senior of the three.

Editorial summary

Begin with the source’s own compact description: “Suphayok Kasem” is prince of Siam. The dossier treats that line as a proposition to test through Suphayok, Kasem and prince, not as a finished interpretation.

Editorial reviewA practical starting point whose main value is the path it opens into stronger specialist and primary sources. The current lead gives the account dated anchors—1872, 1932, 1921, 1922—that can be checked directly. The linked authority record independently contributes the date 1872-08-29. For this dossier, Suphayok, Kasem and prince is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “prince of Siam” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

Evidence profile

Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Jun 10, 2026. The linked authority identifier is Q16141015. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1872, 1932, 1921 and 1922.

Critical limits

The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “Suphayok Kasem”, its source revision and the description used here.
  2. Expand the search: follow Suphayok Kasem primary sources, Suphayok Kasem archive and Suphayok research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Suphayok Kasem”?
  2. Which cited source is closest to the event, object or claim?
  3. What terminology or title could unlock a more precise catalogue search?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from “Suphayok Kasem” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.