[1][3] According to Charles de Menou d'Aulnay, Jacquelin was the daughter of an actress in Paris.

[1] Jacquelin quickly became involved in the Acadian Civil War, her husband's struggle with Charles de Menou d'Aulnay for control of Acadia.

She evaded a blockade d'Aulnay had established and returned to France to plead her husband's case to the king.

Jacquelin assumed command of the garrison there, refused to surrender, and led a pitched three-day battle to defend the fort.

On the fourth day, with the walls of the fort breached and having taken heavy casualties, Jacquelin surrendered.