manoeuvring 'for the weather-gauge, Leo began to see that France and Venice could never consent to his favourite scheme for the annexation of Ferrara, the one part of Julius' design which yet remained unexecuted. France was closely linked with Alfonso d' Este, and Venice preferred him as a neighbour to the Pope. Then Leo turned to Charles, and Charles was ready to promise all that he could ask-Parma, Piacenza, Ferrara, imperial protection for the Medici, the restoration of Francesco Sforza in Milan and the Adorni in Genoa, and the suppression of the enemies of the Catholic faith. In return the Pope promised the investiture of Naples, and a defensive alliance. Leo would have been glad to make the alliance offensive, but the Emperor was in no hurry for war, and still hoped that it might be averted.
The alliance with Leo was valuable to Charles for the resources, material and spiritual, which the Pope and the Medici controlled, for the protection which the Papal States afforded against attacks on Naples from the north, and for the access they gave to Lombardy from the south. Still more valuable appeared the alliance with England, as securing the Netherlands against a joint attack. Wolsey at first was anxious to play the part of mediator or arbitrator between the hostile powers. At length at Bruges the agreement was reached on August 25. Chièvres was dead (May 18, 1521), and Charles took himself the leading part in these negotiations. Charles was to marry Mary, the daughter of Henry VIII. The Emperor and King entered the most solemn alliance not only for the defence of their present possessions, but for the recovery of all that they could severally claim. The Emperor, who was meditating a visit to Spain, was to visit England on the way. War was to be openly declared in March, 1523. But if no suspension of hostilities came about between Charles and France, the declaration of war was to take place on the occasion of Charles' visit to England. All this was to be secured by the most solemn and public declarations within four months.
The treaty of alliance, solemn as it professed to be, left something to be desired. France was already effectively at war with Charles. Robert de la Marck, Lord of Bouillon and Sedan, early in the year had invaded the southern Netherlands, and Duke Charles of Gelders, an old ally of France and enemy of the Burgundian rulers, had attacked the north. Henri d'Albret had marched into Navarre, and at first had met with considerable success. These attacks were manifestly supported by France, and Charles could therefore claim the aid of England by virtue of earlier treaties as the victim of unprovoked aggression. But for the time being it must suffice that England was neutralised. In the border warfare which succeeded Charles could hold his own. Sickingen chastised the Lord of Bouillon. Henri d'Albret was driven from Navarre by local levies. And although on the frontier of the Netherlands things looked black for a while, though Mezières under Bayard held out against attack
