[1] She was the penultimate child of fourteen; her brother Claude, Duke of Chevreuse was the husband of Marie de Rohan, the infamous Frondeur.

She was named after her two godmothers; Louise in honour of Louise of Lorraine, wife of Henry III of France and Marguerite in honour of Marguerite de Valois, first wife of Henry IV.

François was a widower having lost his first wife Jeanne de Coësmes in 1601; that marriage remained childless despite the union being for twenty years.

On 8 May 1610, the Princess of Conti gave birth to a daughter, baptised Marie, at the Palais du Louvre.

Having married Bassompierre, they lived together in disgrace, Louise Marguerite dying at the Château d'Eu.

She is credited as the author of a fictionalized account of the love life of Henry IV's court, reworked and published under various titles including Romant royal (1621), Advantures de la cour de Perse (1629), and Histoire des amours du grand Alcandre (1651).