Château de Blois
Marguerite Louise, the eldest child of Gaston of France, Duke of Orléans, and of his second wife, Marguerite of Lorraine, was born on 28 July 1645 at the Château de Blois. She was the eldest of five children born to Gaston by his second wife. Her other sisters included Élisabeth Marguerite, future Duchess of Guise and the Duchess of Savoy.