The "Duchess of Montpensier" refers to Marie de Montpensier, a prominent French noblewoman in the 17th century. Born in 1627, she was the daughter of Henri de Montpensier and Anne de Bourbon. Known for her intelligence and strong personality, she played a significant role in the political landscape of her time, particularly during the Fronde, a series of civil wars in France. She was also a patron of the arts and literature, influencing various cultural developments. The Duchess is often remembered for her writings, including her memoirs, which provide valuable insights into the court life and politics of the era.