As we may expect, Bayard was not long without being sent on some perilous adventure. He was at the siege of Pampeluna with the deposed King Jean d'Albret of Navarre and the lord of La Palisse, when they told him there was a certain castle about four leagues off which it would be well for him to take, as the garrison was a constant annoyance to the French. The Good Knight at once set off with his own company, that of Captain Bonneval, a certain number of adventurers, and two troops of "landsknechte." When he arrived before the fortress, he sent a trumpeter to proclaim to those within that they must yield it to their rightful sovereign, the King of Navarre, in which case they would save their lives and goods, but if the place had to be taken by assault they would have no mercy.
The Spaniards were valiant men and loyal subjects of the King of Spain, and they made reply that they would not yield the fortress and still less themselves. Upon this Bayard put his artillery in position and made such good use of it that a breach was soon made in the walls, but it was high up and not easy to make use of. The Good Knight then sounded the order to assault and commanded the "landsknechte" to advance. Their interpreter said that it was their rule, when a place was to be taken by assault, that they should have double pay. The Good Knight would have nothing to do with their rules, but he promised that if they took the place they should have what they asked for. But not a single man of them would mount the breach. Thereupon Bayard sounded the retreat, and then made an attack with the artillery as though he wished to enlarge the breach, but he had another plan. He called one of his men-at-arms, by name Little John, and said to him: "My friend, you can do me a good service which will be well rewarded. You see that tower at the corner of the castle; when you hear the assault begin take ladders, and with thirty or forty men scale that tower, which you will find undefended." So it turned out, for all the garrison went to defend the breach, while Little John and his men mounted the tower unseen and cried out, "France! France! Navarre! Navarre!" The defenders, finding themselves assailed on every side, did their best; but the castle was soon taken, and the whole place was pillaged and left in charge of the King of Navarre's men.
In this year, 1513, died Julius II., the great warrior Pope, a constant foe to the French, and he was succeeded by the Cardinal dei Medici, Pope Leo X.
Louis XII., having most reluctantly withdrawn his troops from Italy, now prepared to meet an invasion of Picardy by the English. He sent a large body of troops to the assistance of the lord of Piennes, Governor of Picardy, commanded by the finest captains of the kingdom, and amongst these was Bayard. In the month of June 1513 a large army had landed with Henry VIII. near Calais; a most convenient place for the invasion of France, as it was in possession of the English. A strong force was sent on to besiege the town of Thérouanne in Artois, but the King himself remained behind at Calais for some tournaments and festivities. When he set forth, a few weeks later, to join his army he had a very narrow escape of being taken prisoner by Bayard, who met him on the way.
It happened that the English King was accompanied by about 12,000 foot-soldiers, of whom 4000 were landed, but he had no horsemen, while Bayard commanded a detachment of nearly 1200 men-at-arms. The two armies came within a cannon-shot of each other, and Henry VIII., seeing his danger, dismounted from his horse and placed himself in the middle of the "landsknechte." The French were only too eager to charge through the foot-soldiers, and Bayard implored the Governor of Picardy, under whose orders he was, to allow him to lead them on. "My lord, let us charge them!" he exclaimed; "if they give way at the first charge we shall break through, but if they make a strong stand we can always retire, for they are on foot and we on horseback." But the lord of Piennes only replied: "Gentlemen, the King my master has charged me on my life to risk nothing, but only to defend his land; do what you please, but for my part I will never give my consent."
The Good Knight, brought up in strict military discipline, was not one to break the law of obedience, and he yielded with bitter disappointment in his heart. The timid caution of the Governor of Picardy had thus lost him, in all probability, the chance of a splendid adventure, for the capture of King Henry VIII. at the very beginning of the war might have changed the whole history of Europe.
As it was, the King was suffered to pass on his way, but Bayard obtained leave to harass the retreating army, and with his company took possession of a piece of artillery called Saint John, for Henry VIII. had twelve of these big cannons, to which he gave the name of "his twelve apostles."
The King of England reached the camp outside Thérouanne in safety, and a few days later was joined by the Emperor Maximilian, who was welcomed with much feasting. Their combined forces are said to have amounted to 40,000 men, and they soon began a vigorous bombardment of the city, which was bravely defended with a strong garrison, who did their best with the limited means at their disposal. Thérouanne was a strongly-fortified city, but the massive walls, which had formerly been impregnable, could not stand against a long siege with this new artillery.
The besieged city was very short of provisions and the great object of the French was to supply these; indeed Louis XII., who had advanced as far as Amiens, was sending constant orders that this must be done at any risk. At the same time he was very anxious to avoid a general engagement as his army would be no match for the combined English and Burgundian forces. French historians tell us that this was the cause of that disastrous encounter which, to their great annoyance, has been called the "Battle of Spurs." They point out that the troops were not sent to fight, but only to revictual a besieged place, and that the King's orders were that, if attacked, "they were to retreat at a walk, and if they were pressed, go from a walk to a trot, and from a trot to a gallop, for they were to risk nothing."
This was the French plan to send provisions for the beleaguered city, a very difficult enterprise on account of the immense army which surrounded it. It was arranged that the cavalry should make a feigned attack on the side of Guinegaste, in order to draw the enemy in that direction, while eight hundred "stradiots" (light horse, chiefly Albanians in the service of France) were to make a dash on the other side, gallop through the defending force, reach the moat and throw in the bundles of provisions which they carried on the necks of their horses. This we are told the Albanians actually succeeded in doing, and it seemed as if this bold stroke would be successful, for the besieged, under cover of night, would be able to fetch in the much-needed provisions.