Edward the Second has been barbarously murdered in Berkeley Castle on the orders of his wife Queen Isabella and her lover, and 15-year-old Edward the Third is now king. Young Edward has already fallen in love with Philippa of Hainault and, to prevent him enquiring into the details of his father's death, Isabella allows the marriage to take place. While some suggest that Edward has a claim on the French throne, he is reluctant to pursue it. It is only when Robert of Artois arrives that the king is provoked into action. When Robert presents Edward with a dead heron and compares him tauntingly to the timid bird, Edward vows to attack France, heralding the beginning of the Hundred Years' War