House of Valois the senior descendant of Philip IV of France. Charles' character eventually alienated both the French and English monarchs, because he readily switched sides whenever it suited his interest. In 1356, Edward, the Black Prince, eldest son and heir of Edward III, led an army to a chevauchée in France. John pursued the Black Prince, who tried to avoid battling the French king's superior force. Negotiations broke down. In the Battle of Poitiers, the French suffered another humiliating defeat, and their king was captured. Edward hoped to capitalize on the victory by invading France and having himself crowned at Reims. But
Crown prince holds a title below that of king/queen (such as grand duke or prince), although it is sometimes used as a synonym for heir apparent. In Europe, where primogeniture governed succession to all monarchies except those of the Papacy and Andorra, the eldest son or (more recently) eldest child of the current monarch fills the role of crown prince or princess, depending upon whether females of the dynasty enjoy personal succession rights. Primogeniture has been abolished in Belgium, Denmark, Luxembourg, Norway, Sweden, the Netherlands and the United Kingdom. The eldest living child of a monarch is sometimes not the heir apparent