In a Latin letter to his friend Vadianus in Vienna, Zwingli himself has thus narrated the events of this campaign:

"Since an evil report about the Confederates has been spread far and wide, and since even that, which the result proves to have been just and innocent, is abused and misrepresented, I have undertaken to give you a picture, short indeed, but true, of the actual condition of our affairs. Passing over the terms of a treaty of alliance, concluded between the Most Holy Vicegerent of Christ, Julius II, and the Confederates, I would only state, that the King of the French (to whom, even while attacking the Church of Christ, some one gave the flattering title, 'Most Christian') wearied out the Venetians by protracted war, conquered in several hard-fought battles, and captured or laid waste their towns; and also that he took up arms against the anointed Head of the Church; set up, under the guidance of a wicked demon, an antipope, as he is styled, and robbed the Holy See of many large cities, among which was Bologna, mother of the sciences and nurse of the common law. When, at the close of the Easter festival, the august King of Spain beheld the ship of Peter tossing in danger on the threatening waves, the condition of the Church filled him with sorrow. As quick as possible he gathered an army and sent it to the aid of the Papal troops, who since winter had lingered in Middle Italy. Full of valor and skilled in military science, they approached Ravenna by forced marches. But the French tyrant also sent out a strong force to meet the Spaniards and their allies, the Venetians."

"When the enemy came in sight, the Spaniards did not decline battle. They had with them an engineer, possessed of the talent of an Archimedes and a Dædalus. He had invented light sickle-wagons, on each of which stood a small mortar. These they pushed before them. The French army was commanded by the Grandmaitre.[2] In front he placed the Swabian landsknechts; behind these the Gascons, and a large body of cavalry, on the wings. The most select of these, himself at their head, formed the corps of observation. At the signal of battle, a shower of red-hot balls was discharged by the Spanish army. The landsknechts were startled. 'Why do ye stand?'--the French marshal is said to have cried out. 'Will ye wait to be shot down? O that I had the brave Confederates with me yet!--they who at the sight of any enemy roared like raging lions, fell on him, and pressed into him! Forwards! Whip them, whom you have often whipped before! Set your swords and halberds against the balls!' The landsknechts begin to advance. And now, the Spaniards put fire to the old wheeled-wagons, and, sheltered by them, press on against the centre. A terrific melee ensues. From sheer fatigue they must often rest and repair their broken ranks. The battle lasts from morning till evening. Already the greater part of the landknechts are killed, and the rest fly. The cavalry also, and the Gascons waver. Eight thousand victims cover the field. The Grandmaitre looks toward heaven, gnashes his teeth, and cries out, 'The victory of the Spaniards shall not be bloodless, or I die this day.' He puts spurs to his horse. His trusty followers come after. Bravely fighting he falls. But the enemy, who expected no new attack, are thrown into disorder. The French again press forward, conquer, and take possession of the city. Night only ends the conflict. Hannibal, after the victory at Cannæ, spread no greater terror over Rome and Italy. The fear of the French rule produced universal lamentation. Comfort and assistance were begged for on all sides. The Confederates, in view of this state of things, think, what a dangerous example it would be, if such a raging tyrant were allowed to make war on the Common Mother of all faithful Christians. They quickly assemble and resolve with zeal, to put the affairs of the Church and of Italy into a better condition. A legate of the cardinal (Schinner) makes his appearance, begging and imploring them by their treaty-obligations to set out at once; yet he can offer no more than a gold-florin to the man. It is scarcely credible; but in six days, notwithstanding, 20,000 chosen infantry are brought together, who immediately rush through Graubunden, over the Adige, and down the narrow defiles to Verona, then in the possession of the landsknechts and the Gascons. On the approach of the Confederates they evacuate the city. The Cardinal again appears in the Swiss army and is received with many marks of honor. Intelligence reaches us from the Venetians; who soon come up with 800 mail-clad troopers and 500 light-horse. Full of glad anticipation they behold the imposing array of the Confederates. We advance to a river[3] (whose name I have not learned) on the other side of which the powerful French army stands strongly intrenched. The bridge, behind which Valleggio lies, was defended by three massive towers. The artillery of the Venetians compels the French to fall back. They take with them what provision they can raise. The army advances to Pontevico, where the enemy again makes a momentary stand. Here a castle is built in the middle of the bridge,[4] up to which point it had been broken down. In the presence of the foe, but under the protection of the Venetian cannon, a number of volunteers swim over and fetch back the boats, which had been carried to the other side. A bridge is quickly constructed. But by the time the army crossed over, the Frenchmen are in full flight. Only a few shots from the field-pieces are sent after them. Conscious that the state of their affairs is desperate, deprived of the support of the Germans, knowing the enemy with whom they have to deal, believing themselves secure no where, they take refuge in Pavia and await the result. The boldest of the Confederate youth had cut off from them a considerable herd of cattle, on which the army could have subsisted for a long time. Ulric von Sax, leader of the Confederates, just as prudent as he was active, resolves to besiege Pavia for a while, because he thinks it not yet advisable to take it by storm. The French still endeavor to prevent a passage over the Po.[5] Here an incident happens almost as incredible as it is amusing. In the French camp were 800 landsknechts, survivors of the defeat at Ravenna. Some of our men swim over the Po, in order to take measures for the fastening of a bridge. The landsknechts sally out to prevent this. All the youth of the Confederate army, skilled in swimming, running, jumping, cast off their clothes and, halberd in hand, leap into the Po, to fight with enemies, of whom they say, 'Would that God had given us such for a daily exercise in the art of war.' In fact, they raised a warlike laugh as often as they caught a glimpse of the landsknechts, not because they esteemed them cowardly and despicable antagonists, but because they were found by them on the side of the enemy and beaten oftener than they conquered. Although the landsknechts saw the naked, white bodies, they still fled, giving a free passage over the river. The Confederates now marched on to Pavia, which was surrounded and taken in a few days in the following manner. Some single combats had preceded. Six Frenchmen had called out four confederates and were killed. Two others challenged a chamois-hunter from the Canton of Glarus. This pleased him. One he shot down with his gun; the other he attacked with the sword. The French, trusting the walls as little as their courage, meditate flight and wish to cover it by the landsknechts, whom they address thus, 'You see, brave comrades, be it chance or be it fate, the luck of war has forsaken France. We must think of retreat, if we cannot count on victory. Our camp is full of despair. Your former boldness must expect to-day the most illustrious trial. Act up to your reputation! We, the heavy and the light armed, will occupy that part of the city, which stretches along the Mincio,[6] before the enemy presses in there and cuts off the way of escape. Thus will we secure the safety of all. If we cannot conquer now, we must try to keep our lives to do it hereafter, as Demosthenes says. So that no one may suspect us of treachery we leave with you the artillery, the pledge of our hope.' The credulous foot-soldiers (landsknechts), trusting their fair speeches, permitted them to march out. But the French have scarcely placed the Mincio (Ticino) behind them, when they take to flight and leave the landsknechts in the lurch. As soon as the citizens of Pavia observe this, they promise, on condition that they are exempted from pillage, a month's pay to each individual in the Confederate and Venetian camps. The former thirsted for a contest with the landsknechts, but this desire was yet to cost them much bitter sweat. The clumsy artillery of the besieging army was drawn up in the park, outside of the city, under the guard of a hundred picked men, from different corps. It was not yet noon, when the women and the more aged citizens, unsuspected by the foot-soldiers, appeared on the walls and let down scaling ladders over them. The hundred, employed as a watch in the park, with some others who joined them, hasten up, climb the walls, and without the knowledge of the rest of the army, try to penetrate into the heart of the city. But the landsknechts have artillery, and they only their short weapons and their fiery courage. Had not the narrow streets checked the former, the Confederates would all have been slain. They try to conceal themselves for the moment behind projections and sheltering walls; but then they suddenly rush out, make themselves masters of two pieces, and turn them against the enemy, who were thus gradually driven back. And now one of the combatants mounts the wall, and proclaims victory and the capture of the city. It is not believed; a stratagem is feared, and it is forbidden to approach the wall. At last, encouraged by the prolonged stentorian cry, some venture to climb up. The landsknechts resist in vain. They become wearied out and are driven into the river. Of 800, only 50 are taken alive. Meanwhile the Confederates march through the gate. The Venetian horsemen pursue the fugitives, but can only overtake a few. Anon, a shout resounds through the city, 'Julius, the Swiss are conquerors.' On the third day, the garrison of the castle surrenders. Eight battering-rams, ten culverins, and ten pieces of smaller artillery are among the trophies. Several had previously belonged to the Venetians. And now at sight of them they embrace and wet them with tears and kiss the escutcheon of St. Mark. So much had the disgraceful loss pained them. The remaining towns send embassies and give in their adherence to the Cardinal and the Confederates. Even Genoa is conquered by the Spaniards, and Asti acknowledges, begging for peace with tied hands, the power of the Holy League. All Italy, the seacoasts of Liguria, and the Lombards are made free by the Confederates. 'We owe to them,' they confess, 'what liberated Greece once owed to Titus Quinctius.' The sound of the trumpet re-echoes through cities, towns, and villages; and bells ring. Scholars, clergy and preachers proclaim from the pulpit; 'Ye are God's people. Ye have humbled the enemies of the Bride of the Crucified.' The army, tarrying some days in Pavia, suppresses a rebellion, which I pass over, because the matter was brought to a happy issue. Then messengers hasten to all parts, in order to bring about a settlement of the affairs of Milan. The Confederate Diet is assembled in Baden, and the following embassies arrive there: legates from his Holiness, Pope Julius II, from the Emperor, from the Cardinal of St. Potentiana (Schinner), legates by proxy of the King of Spain, from the King of France (these half by stealth), from the Duke of Savoy, from the Duke of Lorraine, from the Venetians, from the Milanese; all bent on furthering their own wishes and aims. Here the foresight and craftiness of men must be studied, how they try to bring each other into difficulty, in order to prosecute their own advantage more securely amid the confusion; and how they pretend to desire one thing, in order to gain the contrary. The Emperor in particular ties the knot. He had resolved in secret to restore Maximilian, son of the banished Duke, Ludovico Sforza, to the princely seat. To the astonishment of all, he comes out with the assertion that Lombardy, as a fief of the empire, durst receive its ruler from no one but the head of the empire. This gave little satisfaction to the Confederates. 'The Emperor,' say they, 'had promised to assist us with cavalry; but he went no further than fair words. We, the Pope, and the Venetians have borne the burden of the war. And now, he, who did nothing, comes to carry off the prize.' Yet it does not break out into an open quarrel. Another embassy arrives from the Holy Father, Julius, and the cardinals. It brings to the Confederates the title of honor, 'Liberators of the Church.' Most welcome is this title to them, and most welcome what is added, 'They may ask what they please, the most sacred will be granted to them.' The greater part, yea, all ask for the privilege of bearing the image of the Crucified on their banner; the men of Glarus wish the risen Savior. In the end the resolution is passed to bring back Maximilian, the son of Louis, to the throne of his father. I would have written to you more fully, my dear Vadianus, for this is not the hundredth part, had not a pressure of business prevented me. Judge of this hasty letter with indulgence. It has been the work of not more than three hours."

This, the earliest historical production of Zwingli, that has come down to us, is translated as literally as possible, in order to show the opinion then entertained by him, of political and ecclesiastical relations, his strong youthful spirit, which delighted in the chances of war, and his study of the military art and history of the warlike Romans. The latter is seen in the occasional, mostly well chosen, technical terms, the insertion of short speeches, and the concise, graphic mode of representation. The defective knowledge of geography displayed need not be wondered at, since maps, those indispensable helps, were wholly wanting in that age. In his eyes the Romish church is surrounded with the highest glory, and its sacred head, the Pope, worthy of reverence almost divine. He regards the expedition to Pavia as lawful, exults with national pride in the laurels won, and even the sight of disorders among the haughty conquerors appears to make only a transient impression upon him. But with keen glance he discovers the moving spring of the diplomatic transactions, the elements of discord, and the quarter, from which the most destructive inroads on the life of the republic were to be feared.

For two years it had become plain to him, with what danger this impure game of false statesmanship, this system of bribes, frauds, flatteries, and intimidations threatened the Confederacy, exposed to it on all sides. Two poems, written about the year 1510 or 1511, "The Labyrinth" and "A poetic Fable concerning an Ox and several Beasts," are to be received partly as pictures of the time, and partly as lessons of warning. Vigorous, rich in thought, original in conception, but somewhat rude in language, they exhibit a row of well-drawn single figures, without light and shade, rather than a group disposed by art, and owe more to the exercise of the understanding than to the impulses of the imagination. They deserve to be handed down to posterity only as the productions of an author, who has done greater things. The second winds up in the following nervous style:

"Where Bribery can show its face,
There Freedom has no dwelling place.
And such a blessing Freedom is,
That boldly Sparta, as we wis,
Unto Hydarmes gave reply:
'Freedom must stand by Bravery
Sheltered and guarded evermore.'
Amid the bloody ranks of war,
Amid the fearful dance of death,
Let gleaming swords drawn from the sheath,
And sharp-edged spears and axes be
Thy guardians, golden liberty.
But, where a brutish heart is met
And by a tempting bribe beset,
There noble Freedom, glorious boon!
And name and blood of friends too soon
Are cheaply prized and rudely torn
The oaths in the holy covenant sworn."

In Italy, the honorable closing act of the year 1512 now took place. At the gates of Milan, in presence of the imperial, papal and Spanish deputies, the burgomaster Schmied of Zurich handed over to the young duke Maximilian Sforza the keys of his conquered capital, and the bailiff Schwarzmauer of Zug received him with a Latin oration. It were well, if the intervention of the Confederates in Italian affairs had ended here, and a strong national resolve, to keep what they had won, and leave what is foreign to the care of foreigners, had gained the ascendency. But already baits were again thrown out by the Pope, the Emperor and France, and were soon followed by scenes, more stormy, more disgraceful, more tragic, out of which the battles of Novara and Marignano rise in bloody trappings.

For several years the eyes of Zwingli had been fully opened to the destructive influence, which foreign mercenary service exerted on a free state. Whether he accompanied the banner of Glarus twice, or only once more into Italy cannot now be accurately determined. Bullinger alone states that he was present at Novara, confounding probably this expedition with one of an earlier date. It is certain, however, that he took part in the campaign of 1515, for, six days previous to the battle of Marignano, he preached in the square before the town-hall in Monza. "Had we followed his counsel," says Werner Steiner, who at the side of his father, the landamman of Zug, listened to the sermon,--"much less blood would have been shed, and the Confederates saved from great harm." But dissension reigned in their ranks, which were crippled by French gold and promises, and they, who did remain faithful, lacked one leader around whom to rally.

The terrific battle of Marignano had ended in a dreadful defeat. Voices of lamentation, reproach, and repentance met those, who found their way back to their native land and resounded here and there also from the pulpit. Zwingli, who himself had been an eye-witness of the whole calamity, believed it his duty, as teacher in the chief-town of the little republic, not to keep silent.

Before men of rank and influence, who even in Glarus, though compelled for the moment to remain quiet, soon gave themselves up again, at first cautiously but afterwards without shame, to the seductions of renewed bribery, sticking to that conqueror, who before had rewarded them so gloriously, and began to further the interests of France, instead of those of their own country, he unveiled, without fear or restraint, the ruinous consequences of this scandalous trade, laid bare its secret hiding places and tricks, and encouraged the better spirit of the people to a wholesome resistance. But notwithstanding, the cunning seducers knew how to restrain themselves, and in spite of all, they gained firmer footing, and although the Perpetual Peace, lately concluded with France, did not give them all they sought for, they still received by it a more secure position for further intrigues.