A crown is a poisonous thing... After having his first wife murdered and his mistress exiled, the weak and impotent King Louis X of France becomes besotted with the lovely and pious Princess Clemence of Hungary. Having made her his new queen, and believing the succession assured, Louis foolishly embarks upon an ill-fated war against Flanders. The kingdom needs an Iron King. But where his father, Philip IV, was strong, Louis is feeble. Surrounded by ruthlessly ambitious nobles, Including Robert of Artois and his monstrous aunt, Mahaut, Louis will find himself a lamb amongst wolves.