Query: Who led the Fronde des princes?
Source: wikipedia5.pdf
Relevant passages:
It was headed by the highest-ranking French nobles, among them Louis's uncle Gaston, Duke of Orléans and first cousin Anne Marie Louise d'Orléans, Duchess of Montpensier, known as la Grande Mademoiselle; Princes of the Blood such as Condé, his brother Armand de Bourbon, Prince of Conti, and their sister the Duchess of Longueville; dukes of legitimised royal descent, such as Henri, Duke of Longueville, and François, Duke of Beaufort; so-called "foreign princes" such as Frédéric Maurice, Duke of Bouillon, his brother Marshal Turenne, and Marie de Rohan, Duchess of Chevreuse; and scions of France's oldest families, such as François de La Rochefoucauld.