She used her influence over the aging king to prevent her political enemies from furthering their causes. This group, known as the "cabale de Meudon", devoted themselves to her father-in-law, hoping to secure themselves in his expected reign upon the death of Louis XIV. Her great enemy was the Duchess of Bourbon, a legitimated daughter of Louis XIV and his mistress, Madame de Montespan. The Duchess of Bourbon wanted her daughter "Mademoiselle de Bourbon" to wed Charles, Duke of Berry, youngest son of the "Grand Dauphin". To maintain her influence over her grandfather-in-law, the Duchess of Burgundy organized Berry's marriage to "Marie Louise Élisabeth d'Orléans", the eldest daughter of Philippe d'Orléans, Duke of Orléans and of his wife Françoise Marie de Bourbon. The influential Marie Adélaïde also brought about the disgrace of Louis Joseph, Duke of Vendôme, the great military man of the era.