She was eventually rescued by Breton fishermen and returned to France.

She told her story to at least one person who recorded it, and the story was preserved in the Heptaméron of Marguerite de Navarre.

What is uncertain or disputed:

The exact location of the island.

The precise relationship between Marguerite and Roberval (uncle, cousin, or another variant).

The identity of the young man.

The exact reason for her abandonment (whether it was purely about the affair, or whether property and inheritance also played a role).

The precise timing and sequence of events during her time on the island, including the sequence of deaths.