When Charles-Quint entered to Provence to the head of 50 000 men, François 1st, who was not ready to push back it by the force, solved to stop it by making country a desert.

The marshal of Montmorency, charged with this work of devastation, discharged some with a pitiless rigour: the houses were burned, destroyed harvests, the which corrupted wells, the shaven trees; the inhabitants had to leave their villages and to take refuge in wood: those which wanted to defend their goods were put at death.

The enemy, not to die of hunger and thirst, was tiny room to be beaten a retreat, and lost half of his army, but Provence was ruined for a long time, and its inhabitants suffered from appalling miseries (1556).

After the truce of Nice, François 1st testified to his former rival an excessive friendship: he revealed a treason of the Gantese to him and invited it to cross France to go to punish them.

Charles-Quint, happy to avoid a long sea journey, accepted with eagerness the offer of the king, came to Bayonne, and accepted a splendid hospitality in the cities which it crossed, and in the castles of Amboise, of Blois, of Chambord, Fontainebleau and the Louvre.

Martin of Bellay tells in his memories that one day one of youngest son of the king, the duke of Orleans, jumped in croup behind the emperor while exclaiming: "Lord, you are my prisoner" Charles-Quint tasted the joke little, and taken distrust, it hastened to leave (January 1540).

François 1st, become as careful as it had been bold, did not want to intend to speak about great battle.

The young count d' Enghien, who ordered the French Army, and which saw the enemy in an unfavorable position, dispatched with the king the Montluc brave man, to tear off the permission to him to fight: "We all are determined to die or overcome; who do you want who kills twelve thousand men like us ? "Montluc appeared so assured success, that the king let himself gain: Triumphing Montluc turned over in all hastes near the count d' Enghien; the battle took place, and it was the victory of Cérisoles (April 1544).

Henri VIII, who projected to dismember France, and which had appointment in Paris with Charles-Quint, unloaded in Calais with an army of 50 000 men, invades Picardy and put the seat in front of Boulogne; the inhabitants were determined to defend oneself bravely, but the governor made only one show of resistance, and capitulated soon (September 14, 1544).

The catch of Boulogne decided François 1st to treat with Charles-Quint, whose avant-garde was shown with the doors of Meaux; peace was signed with Crespy-in-Valois September 18, and France did not have to push back but the English invasion any more.