Louise Diane d'Orléans

Louise Diane d'Orléans (27 June 1716 – 26 September 1736) was Princess of Conti from her marriage to Prince Louis François in 1732, until her death in childbirth. She was the youngest child of Philippe II, Duke of Orléans and Françoise Marie de Bourbon, the youngest legitimised daughter of King Louis XIV of France and his mistress Madame de Montespan. She was born while her father was the regent for Louis XV. Some sources referred to her as Louis Diane.

Biography Louise Diane d'Orléans was born in the Palais-Royal, the Paris residence of the House of Orléans, on 27 June 1716 as the youngest child of the Philippe II, Duke of Orléans and Françoise Marie de Bourbon.

Louise's birth and her gender was seen as a disappointment and caused her paternal grandmother to lament that "It is unfortunate that all of my son's bastards are boys and his legitimate children are girls."

Louise's parents relationship was not a harmonious one, with her father nicknaming her mother "Madame Lucifer" because of her haughty manner. They lived mostly separate lives, with the duchess living at the Palais-Royal with their children, while the duke lived at the Petit Palais while pursuing a dissipated life and openly flaunting his mistresses in front of his wife. Despite their marital discord they would go on have eight children.

Louise received her early education from the same governess as her aunt Élisabeth Charlotte d'Orléans, but due to their unruliness and their mother, the duchess's, laxness in supporting the governess and disciplining her children,

Her only surviving son, Louis François Joseph, was the last Prince of Conti.

Issue Louis François Joseph de Bourbon, Prince of Conti (1 September 1734 - 13 March 1814); married his first cousin, Princess Maria Fortunata of Modena, and had no legitimate issue. Stillborn son* (26 September 1736).