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
Prince of Beira Prince of Beira Prince of Beira () is a title traditionally granted to the heir apparent of the heir apparent to the throne of Portugal. The title's original use that it be granted on the eldest daughter of the reigning monarch of Portugal. Tied with the title of Prince of Beira, is Duke of Barcelos, as heir to the Duke of Braganza and Prince of Brazil ("later" Prince Royal of Portugal). The current Prince of Beira is Prince Afonso, the eldest son of Duarte Pio, Duke of Braganza. The title's name has its origins in the Beira province in central