Marie's father had persuaded King Charles VI not to fight at the battle of Agincourt on 25 October 1415, but Marie's husband did fight, was captured, and spent the rest of his life in English captivity.
Ayahanda Marie membujuk Raja Charles VI untuk tidak berperang di pertempuran Agincourt pada tanggal 25 Juli 1415, namun suami Marie tetap berperang, ia ditangkap, dan menghabiskan sisa hidupnya di penangkaran Inggris.