Marie de Guise was the mother of Mary Queen of Scots. She was also Tall, Glamorous, had her own bespoke armour, and lived an AMAZING LIFE.
Fiction writers need to embellish very little to turn Marguerite's life into a highly dramatic narrative. This woman truly lived her best life.
Reign's mandate was to dramatize what happened between the lines of historical record, and in so doing, presented something entirely truthful.
The story of a woman who single-handedly kept France afloat during a time of constant Civil War. And she also sort of invented ballet!