Originally a baker, Antoine Foucher had a successful career as a notary at Terrebonne, but he is best remembered as the owner of the first Francophone theatre (staging in 1774 the first production of Molière with various English officers at his home in Montreal) to which he dedicated his small fortune.
In 1817, the Legislative Assembly of Lower Canada, led by the Parti patriote, brought charges against him for misdemeanor and delinquency in the exercise of his functions, and demanded his dismissal.
The matter was referred to the Prince Regent, who in 1819 decided in his favour, and as such he kept his judicial seat.
In 1820, he moved into Piedmont, one of the early estates of the Golden Square Mile, which after his death was sold to John Frothingham.
[8] In 1787, he had married Marie-Élizabeth, daughter of Pierre Foretier, Seigneur d'Île Bizard.