Section 1704: Wills made by incompetent or mentally unsound persons
Statutory text (Thai original)
พินัยกรรมซึ่งบุคคลผู้ถูกศาลสั่งให้เป็นคนไร้ความสามารถทำขึ้นนั้น เป็นโมฆะพินัยกรรมซึ่งบุคคลผู้ถูกอ้างว่าเป็นคนวิกลจริต แต่ศาลยังไม่ได้สั่งให้เป็นคนไร้ความสามารถทำขึ้นนั้น จะเป็นอันเสียเปล่าก็แต่เมื่อพิสูจน์ได้ว่าในเวลาที่ทำพินัยกรรมนั้นผู้ทำจริตวิกลอยู่
Verbatim from the Royal Gazette / Office of the Council of State
English translation
A will made by a person adjudged incompetent is void. A will made by a person, who is alleged to be of unsound mind but not adjudged incompetent, may be annulled only if it is proved that at the time of making the will the testator was actually of unsound mind.
This English translation is provided for reference only and has not yet been firm-verified. Always rely on the Thai original.
Firm annotation
Section 1704 is part of Book 6 (Succession) of the Thai Civil and Commercial Code. This entry is awaiting firm-authored commentary; the statutory text above is verbatim from the Office of the Council of State (OCS Krisdika) Thai source, with the English translation from the FAO/UN FAOLEX repository. Always rely on the Thai original for legal proceedings.
Cited in 3 Supreme Court decisions (1994 to 2007)
Selected citing decisions
- Decision 3552/2550 (2007)
- Decision 2307/2539 (1996)
- Decision 6417/2537 (1994)
This list is selected automatically, weighted towards judgments that turn on this section rather than ones that merely recite it when passing sentence. It has not yet been reviewed by the firm.
Counted across the firm's corpus of 83,652 Supreme Court decisions, 1921 to 2026. The count is complete; the stated year range trims rare outliers so it describes where the citations actually sit. These figures are computed by us and are not official court statistics. How we count these, and what we measured
Related guides on ThaiLawOnline
Cite this section
-
Plain citation
Civil and Commercial Code, s. 1704 (Thailand) -
Academic citation
Civil and Commercial Code (Thailand), s. 1704. ThaiLawOnline, https://www.thailawonline.com/thai-civil-code/section-1704/ (accessed 27 August 2026). -
Thai citation
ป.พ.พ. มาตรา 1704 -
Permalink
https://www.thailawonline.com/thai-civil-code/section-1704/ -
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<blockquote cite="https://www.thailawonline.com/thai-civil-code/section-1704/"><p>A will made by a person adjudged incompetent is void. A will made by a person, who is alleged to be of unsound mind but not adjudged incompetent, may be annulled only if it is proved that at the time of making the will the…</p><footer>Civil and Commercial Code, s. 1704 (Thailand): <a href="https://www.thailawonline.com/thai-civil-code/section-1704/">ThaiLawOnline</a></footer></blockquote>
The Thai text is authoritative. The English is an unofficial translation by ThaiLawOnline, free to reuse with attribution.