A private and most audacious attempt to secure the person: of Alva and the possession of Brussels had failed. He was soon, however, called upon to employ all his energies against the open warfare which was now commenced.
According to the plan of the Prince, the provinces were to be attacked simultaneously, in three places, by his lieutenants, while he himself was waiting in the neighborhood of Cleves, ready for a fourth assault. An army of Huguenots and refugees was to enter Artois upon the frontier of France; a second, under Hoogstraaten, was to operate between the Rhine and the Meuse; while Louis of Nassau was to raise the standard of revolt in Friesland.
The two first adventures were destined to be signally unsuccessful. A force under Seigneur de Cocqueville, latest of all, took the field towards the end of June. It entered the bailiwick of Hesdin in Artois, was immediately driven across the frontier by the Count de Roeulx, and cut to pieces at St. Valery by Marechal de Cossis, governor of Picardy. This action was upon the 18th July. Of the 2500 men who composed the expedition, scarce 300 escaped. The few Netherlanders who were taken prisoners were given to the Spanish government, and, of course, hanged.
The force under the Seigneur de Villars was earlier under arms, and the sooner defeated. This luckless gentleman, who had replaced the Count of Hoogstraaten, crossed the frontier of Juliers; in the neighborhood of Maestricht, by the 20th April. His force, infantry and cavalry, amounted to nearly three thousand men. The object of the enterprise was to, raise the country; and, if possible, to obtain a foothold by securing an important city. Roermonde was the first point of attack, but the attempts, both by stratagem and by force, to secure the town, were fruitless. The citizens were not ripe for revolt, and refused the army admittance. While the invaders were, therefore, endeavoring to fire the gates, they were driven off by the approach of a Spanish force.
The Duke, so soon as the invasion was known to him, had acted with great promptness. Don Sancho de Lodrono and Don Sancho de Avila, with five vanderas of Spanish infantry, three companies of cavalry, and about three hundred pikemen under Count Eberstein, a force amounting in all to about 1600 picked troops, had been at once despatched against Villars. The rebel chieftain, abandoning his attempt upon Roermonde, advanced towards Erkelens. Upon the 25th April, between Erkelens and Dalem, the Spaniards came up with him, and gave him battle. Villars lost all his cavalry and two vanderas of his infantry in the encounter. With the remainder of his force, amounting to 1300 men, he effected his retreat in good order to Dalem. Here he rapidly entrenched himself. At four in the afternoon, Sancho de Lodrono, at the head of 600 infantry, reached the spot. He was unable to restrain the impetuosity of his men, although the cavalry under Avila, prevented by the difficult nature of the narrow path through which the rebels had retreated, had not yet arrived. The enemy were two to one, and were fortified; nevertheless, in half an hour the entrenchments were carried, and almost every man in the patriot army put to the sword. Villars himself, with a handful of soldiers, escaped into the town, but was soon afterwards taken prisoner, with all his followers. He sullied the cause in which he was engaged by a base confession of the designs formed by the Prince of Orange—a treachery, however, which did not save him from the scaffold. In the course of this day's work, the Spanish lost twenty men, and the rebels nearly 200. This portion of the liberating forces had been thus disastrously defeated on the eve of the entrance of Count Louis into Friesland.
As early as the 22d April, Alva had been informed, by the lieutenant-governor of that province, that the beggars were mustering in great force in the neighborhood of Embden. It was evident that an important enterprise was about to be attempted. Two days afterwards, Louis of Nassau entered the provinces, attended by a small body of troops. His banners blazed with patriotic inscriptions. 'Nunc aut nunquam, Recuperare aut mori', were the watchwords of his desperate adventure: "Freedom for fatherland and conscience" was the device which was to draw thousands to his standard. On the western wolds of Frisia, he surprised the castle of Wedde, a residence of the absent Aremberg, stadholder of the province. Thence he advanced to Appingadam, or Dam, on the tide waters of the Dollart. Here he was met by, his younger brother, the gallant Adolphus, whose days were so nearly numbered, who brought with him a small troop of horse. At Wedde, at Dam, and at Slochteren, the standard was set up. At these three points there daily gathered armed bodies of troops, voluntary adventurers, peasants with any rustic weapon which they could find to their hand. Lieutenant-governor Groesbeck wrote urgently to the Duke, that the beggars were hourly increasing in force; that the leaders perfectly understood their game; that they kept their plans a secret, but were fast seducing the heart of the country.
On the 4th May, Louis issued a summons to the magistracy of Groningen, ordering them to send a deputation to confer with him at Dam. He was prepared, he said, to show the commission with which he was provided. He had not entered the country on a mere personal adventure, but had received orders to raise a sufficient army. By the help of the eternal God, he was determined, he said, to extirpate the detestable tyranny of those savage persecutors who had shed so much Christian blood. He was resolved to lift up the down-trod privileges, and, to protect the fugitive, terror-stricken Christians and patriarchs of the country. If the magistrates were disposed to receive him with friendship, it was well. Otherwise, he should, with regret, feel himself obliged to proceed against them, as enemies of his Majesty and of the common weal.
As the result of this summons, Louis received a moderate sum of money, on condition of renouncing for the moment an attack upon the city. With this temporary supply he was able to retain a larger number of the adventurers; who were daily swarming around him.
In the mean time Alva was not idle. On the 30th April, he wrote to Groesbeck, that he must take care not to be taken napping; that he must keep his eyes well open until the arrival of succor, which was already on the way. He then immediately ordered Count Aremberg, who had just returned from France on conclusion of hostilities, to hasten to the seat of war. Five vanderas of his own regiment; a small body of cavalry, and Braccamonte's Sardinian legion, making in all a force of nearly 2500 men, were ordered to follow him with the utmost expedition. Count Meghem, stadholder of Gueldres, with five vanderas of infantry, three of light horse, and some artillery, composing a total of about 1500 men, was directed to co-operate with Aremberg. Upon this point the orders of the Governor-general were explicit. It seemed impossible that the rabble rout under Louis Nassau could stand a moment before nearly 4000 picked and veteran troops, but the Duke was earnest in warning his generals not to undervalue the enemy.
On the 7th May, Counts Meghem and Aremberg met and conferred at Arnheim, on their way to Friesland. It was fully agreed between them, after having heard full reports of the rising in that province, and of the temper throughout the eastern Netherlands, that it would be rash to attempt any separate enterprise. On the 11th, Aremberg reached Vollenhoven, where he was laid up in his bed with the gout. Bodies of men, while he lay sick, paraded hourly with fife and drum before his windows, and discharged pistols and arquebuses across the ditch of the blockhouse where he was quartered. On the 18th, Braccamonte, with his legion, arrived by water at Harlingen. Not a moment more was lost. Aremberg, notwithstanding his gout, which still confined him to a litter, started at once in pursuit of the enemy. Passing through Groningen, he collected all the troops which could be spared.. He also received six pieces of artillery. Six cannon, which the lovers of harmony had baptized with the notes of the gamut, 'ut, re, mi, fa, sol, la', were placed at his disposal by the authorities, and have acquired historical celebrity. It was, however, ordained that when those musical pieces piped, the Spaniards were not to dance. On the 22d, followed by his whole force, consisting of Braccamonte's legion, his own four vanderas, and a troop of Germans, he came in sight of the enemy at Dam. Louis of Nassau sent out a body of arquebusiers, about one thousand strong, from the city. A sharp skirmish ensued, but the beggars were driven into their entrenchments, with a loss of twenty or thirty men, and nightfall terminated the contest.