Sthira Sthirasuta
Thai real estate developer and socialite (1926–2017)
Sthira Sthirasuta (also spelled Sathien Sathirasut, etc., Thai: เสถียร เสถียรสุต, pronounced [sa.tʰǐan sa.tʰǐa.ra.sùt]; 1926 – 9 December 2017) was a Thai real estate developer and socialite, known as an art collector, stable owner, Muay Thai promoter, and Buddhist benefactor.
Sthira was born into a land-owning family. He attended school at Vajiravudh College and received education in the United Kingdom. From the family's holdings, he developed the Ploenchit Arcade shopping centre, and later managed The Regent Bangkok hotel. He was a member of high society, known for his colourful lifestyle and gangster reputation. He had large collections of art and Buddha amulets, and was a stable-owner, his horses regularly racing at the Pathum Wan and Nang Loeng racecourses. He founded the Sor Ploenchit Muay Thai gym in 1981.
In the 1970s, Sthira became romantically involved with Sansanee Panyasiri, who would later become better known as a mae chi (woman monastic), having renounced worldly life after learning that he was already married. He supported her spiritual path, and became the benefactor of the meditation centre she founded, Sathira-Dhammasthan.
Begin with the source’s own compact description: “Sthira Sthirasuta” is thai real estate developer and socialite (1926–2017). The dossier treats that line as a proposition to test through Sthira, Sthirasuta and Thai, not as a finished interpretation.
Why this record matters
The phrase “thai real estate developer and socialite (1926–2017)” 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.
Place names and jurisdictional language are key evidence: both can reveal earlier catalogue descriptions and overlooked record series. The source revision retrieved here is dated Oct 22, 2025. The linked authority identifier is Q122400256. None of the 1 selected statements returned an explicit reference. The first chronological checks are 1926, 2017 and 1981.
Modern boundaries and familiar names can conceal earlier jurisdictions or structures that do not align with the present site. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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Three-step research path
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This entry incorporates text from “Sthira Sthirasuta” 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.