Pan (Thai: ปาน) was a Siamese diplomat and minister who led the Second Siamese Embassy to France sent by King Narai in 1686.:262–263 He was preceded to France by the First Siamese Embassy to France, which had been composed of two Siamese ambassadors and Father Bénigne Vachet, who had left Siam for France on January 5, 1684. He was a nephew of King Ekathotsarot and a great grandfather of King Phutthayotfa Chulalok, the founder of Chakri Dynasty. His brother, Lek (เหล็ก), also held the post of foreign minister before him.
Pan was his personal name. In formal language, he is usually called by his noble title Chao Phraya Kosathibodi (เจ้าพระยาโกษาธิบดี; "Lord Minister of World Affairs"), which was the title for the minister of foreign affairs. He is also referred to by his former title Ok Phra Wisut Sunthon (ออกพระวิสุทธิสุนทร; "Count of Pure Amity"), the title for a first-class diplomat.
In informal language, Pan is usually called Kosa Pan (โกษาปาน; "Foreign Minister Pan").
Due to his successful diplomatic careers, he also gained the nickname "Honey-tongued Diplomat" (ราชทูตลิ้นทอง Ratcha Thut Lin Thong or นักการทูตลิ้นทอง Nak Kan Thut Lin Thong; both literally mean "Golden-tongue Diplomat"). In Thai language, lin thong (ลิ้นทอง; "golden-tongue") means good at speaking or negotiating.
Embassy to France (1686)
Pan left for France in 1686, accompanying the return of the 1685 French embassy to Siam of Chevalier de Chaumont and François-Timoléon de Choisy on two French ships. The embassy was bringing a proposal for an eternal alliance between France and Siam and stayed in France from June 1686 to March 1687. Pan was accompanied by two other Siamese ambassadors, Ok-luang Kanlaya Ratchamaitri and Ok-khun Sisawan Wacha, and by the Jesuit Father Guy Tachard.
Pan's embassy was met with a rapturous reception and caused a sensation in the courts and society of Europe. The mission landed at the French port of Brest before continuing its journey to Versailles, constantly surrounded by crowds of curious onlookers.:64–65
1688 Siamese revolution
Pan is known to have been met in Siam in 1690 by the German naturalist Engelbert Kaempfer, who described "pictures of the Royal family of France and European maps" hanging "in the hall of his house":
"He is a more comely Person, and of better aspect, than I ever met amongst this black race of mankind... He is also quick of understanding and lively action, for which reasons he was a few years ago sent Ambassador to France, of which Country, its Government, Fortresses and the like, he would often entertain us in his discourses; and the hall of his House, where we had a private audience of him, was hung with the pictures of the Royal Family of France, and European Maps, the rest of his furniture being nothing but Dust and Cobwebs.—Engelbert Kaempfer (1727/1987:38).
In 1700 Pan was disgraced, had his nose cut off by King Petracha, and apparently committed suicide. Nevertheless, he is claimed to be the direct ancestor of King Rama I, founder of the present ruling dynasty of Thailand
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- ออกพระวิสุทธสุนทร (โกษาปาน) [Ok Phra Wisut Sunthon (Kosa Pan)] (in Thai). Historical Archives of the Archdiocese of Bangkok. 2012-10-04. Retrieved 2014-07-15.
- คำแก้ต่าง-ข้อแก้ตัวของโกษาปาน เรื่องปฏิวัติผลัดแผ่นดิน พ.ศ. ๒๒๓๑ [Explanation or excuse of Kosa Pan on 1688 coup] (in Thai). Historical Archives of the Archdiocese of Bangkok. 2013-01-24. Retrieved 2014-07-15.
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