Though she never set foot in Canada,[1] La Grange played an important role in the development of the colony as Frontenac's ambassador in the court of Louis XIV.

Frontenac was a career soldier from minor nobility who occupied a privileged position within the court and Anne was in line to inherit a sizable fortune from the estate of her deceased mother.

When De Neufville found out about the secret wedding in April 1649, he was outraged, disowning his daughter and vowing to remarry so he could produce a new heir to his estate.

[5][6] In the aftermath of these events, La Grange entered the entourage of Madame Montpensier for a time, the granddaughter of Henry IV famous for her role in the Fronde.

La Grange enjoyed the favor of Montpensier for a time, following her through her exile and partaking of notable events such as breaking into the city of Orléans with a group of boatmen.

[10][11][12] Frontenac very carefully built his legend by sending his diaries and accounts of his exploits to La Grange who would circulate them among the influential people in the French court.