 He also saw it, together with the crowns of Italy and Arles, as a necessary counterweight to the ambitions of the French king.To ensure the success of his Italian expedition, Henry entered into negotiations with Robert, King of Naples in mid-1310, with the intent of marrying his daughter, Beatrix to Robert’s son, Charles, Duke of Calabria.It was hoped that this would lessen the tensions in Italy between the anti-imperial Guelphs, who looked to the King of Naples for leadership, and the pro-imperial Ghibellines.