Background
Armand was born in Voiron, France, the son of Joseph Antoine Guy Allard du Plantier (1721–1801) and Gabrielle Trenonay de Chanfrey.
Armand was born in Voiron, France, the son of Joseph Antoine Guy Allard du Plantier (1721–1801) and Gabrielle Trenonay de Chanfrey.
Marie Augustine died of yellow fever in 1799. Five more children were born of this union. Duplantier was disturbed by the 1794 slave revolt which occurred locally.
lieutenant was called the Pointe Coupée Conspiracy and reminded him of the Haitian Revolution (1791-1804).
He was a slave-owner and regretted that he had bought some Saint-Domingue slaves, but he did not want to sell them until they regained their value. Armand Duplantier helped to establish a college in Baton Rouge in 1822.
A few years later, he was part of the delegation which welcomed the Marquis de Lafayette, during his American tour. 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.
Armand Duplantier died the same year and was given military honors at his funeral, in tribute to his Revolutionary War service.