Louis Antoine de Poirot (1735–1813) was a Jesuit painter and translator of the 18th and early 19th century, who worked in the service of the Chinese emperor Qianlong adopting the Chinese name He Qingtai (賀清泰). He was the last of the Western painters who worked for Qianlong, together with Father Giuseppe Panzi. The two painters replaced the more famous father Giuseppe Castiglione and Jean-Denis Attiret.

Poirot also made a translation of the Old Testament

Old Testament

The Old Testament, of which Christians hold different views, is a Christian term for the religious writings of ancient Israel held sacred and inspired by Christians which overlaps with the 24-book canon of the Masoretic Text of Judaism...

 in the Manchu language

Manchu language

Manchu is a Tungusic endangered language spoken in Northeast China; it used to be the language of the Manchu, though now most Manchus speak Mandarin Chinese and there are fewer than 70 native speakers of Manchu out of a total of nearly 10 million ethnic Manchus...

, and a translation of the New Testament

New Testament

The New Testament is the second major division of the Christian biblical canon, the first such division being the much longer Old Testament....

 into the Chinese language

Chinese language

The Chinese language is a language or language family consisting of varieties which are mutually intelligible to varying degrees. Originally the indigenous languages spoken by the Han Chinese in China, it forms one of the branches of Sino-Tibetan family of languages...

. He was also in charge of the translations between Latin and Manchu for the diplomatic correspondence between Pekin

Pekin

-United States:*Pekin, Illinois*Pekin, Indiana*Pekin, Iowa*Pekin, Kentucky, now Paducah, Kentucky*Pekin, Maryland*Pekin Township, Michigan*Pekin, New York, hamlet in town of Cambria, New York*Pekin, North Dakota-Animals:*Red-billed Leiothrix, or Pekin Robin...

 and Saint Petersburg

Saint Petersburg

Saint Petersburg is a city and a federal subject of Russia located on the Neva River at the head of the Gulf of Finland on the Baltic Sea...

 (Russia

Russia

Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...

).