Marie de Clèves (1553–1575)

Marie de Clèves
Princess of Condé
Marie of Cleves
Spouse(s)	Henri I de Bourbon, prince de Condé
Issue Catherine, Marquise d'Isles
Noble family	La Marck
Father	Francis I of Cleves
Mother	Margaret of Bourbon-Vendôme
Born	1553
Died	1574 (aged 20–21)
Religion	Roman Catholicism prev. Calvinism

Marie of Cleves or of Nevers (Marie de Clèves, Marie de Nevers; 1553–1574), by marriage the Princess of Condé, was the wife of Henry, Prince of Condé, and an early love interest of King Henry III of France. She was the last child of Francis I of Cleves, Duke of Nevers, and Margaret of Bourbon-Vendôme, elder sister of Antoine of Navarre.

Her older sisters were Henriette of Cleves and Catherine of Cleves. King Henry IV of France was her maternal first cousin, and Anne of Cleves, the fourth wife of Henry VIII of England, was her second cousin once removed. Her brothers-in-law were Henry I, Duke of Guise and Louis Gonzaga, Duke of Nevers.

She was brought up by her aunt Queen Joan III of Navarre, who raised her as a Calvinist. In 1572 she married in a Calvinist ceremony her first cousin, Henri I de Bourbon, prince de Condé, duc d'Enghien. A few months later, after the St. Batholomew massacre, the couple had forcibly been converted to Roman Catholicism and remarried according to Catholic rites. When her husband fled the court and rejoined the Protestant cause, she refused and stayed behind at court remaining a Catholic the rest of her life.