Armand Gabriel Allard du Plantier (1753 – 9 Oct 1827) was a French cavalry officer who served in the American Revolutionary War as an aide-de-camp to General Lafayette.
[1][2] Armand was born in Voiron, France, the son of Joseph Antoine Guy Allard du Plantier (1721–1801) and Gabrielle Trenonay de Chanfrey.
[3] In 1781, he moved to Louisiana (New Spain), settling on the plantation of his uncle, Claude Trénonay, in the area of Pointe Coupée on the Mississippi River.
[2] In 1827, Duplantier, Fulwar Skipwith, Antoine Blanc, Thomas B. Robertson, and Sebastien Hiriart received permission from the Louisiana State Legislature to organize a corporation called the Agricultural Society of Baton Rouge.
[5] Armand Duplantier died the same year and was given military honors at his funeral, in tribute to his Revolutionary War service.