"Marguerite Louise d'Orléans (28 July 1645 – 17 September 1721) was a Princess of France who became Grand Duchess of Tuscany, as the wife of Grand Duke Cosimo III de' Medici.
Libertine and unruly in conduct from an early age, her relations with her husband and his family were tempestuous and often bitter, with repeated appeals for mediation to Louis XIV. Nevertheless, three children were born to the couple: Grand Prince Ferdinando, Anna Maria Luisa, Electress Palatine, and Gian Gastone.
In June 1675, five years after her husband had succeeded to the Grand Duchy and four years after the birth of their youngest child, Marguerite Louise and her husband separated and she retired with a pension to a convent on the outskirts of Paris. In France she proved little inclined to respect social conventions governing the life of a woman of her rank and proved a thorn in the side of the Tuscan authorities and the French monarchy, indulgent though it was." - (en.wikipedia.org 12.08.2021)