The latter of these legislators completely changed the forms of the government; he revived the ancient privileges destroyed by Charles V., and took all preliminary measures for forcing the various provinces to join with the city of Ghent in forming a federative republic. The states-general and the Prince of Orange were alarmed, lest these troubles might lead to a renewal of the anarchy from the effects of which the country had but just obtained breathing-time. Ryhove consented, at the remonstrance of the Prince of Orange, to release the duke of Arschot; but William was obliged to repair to Ghent in person, in the hope of establishing order. He arrived on the 29th of December, and entered on a strict inquiry with his usual calmness and decision. He could not succeed in obtaining the liberty of the other prisoners, though he pleaded for them strongly. Having severely reprimanded the factious leaders, and pointed out the dangers of their illegal course, he returned to Brussels, leaving the factious city in a temporary tranquillity which his firmness and discretion could alone have obtained.

The archduke Mathias, having visited Antwerp, and acceded to all the conditions required of him, made his public entry into Brussels on the 18th of January, 1578, and was installed in his dignity of governor-general amid the usual fetes and rejoicings. Don John of Austria was at the same time declared an enemy to the country, with a public order to quit it without delay; and a prohibition was issued against any inhabitant acknowledging his forfeited authority.

War was now once more openly declared; some fruitless negotiations having afforded a fair pretext for hostilities. The rapid appearance of a numerous army under the orders of Don John gave strength to the suspicions of his former dissimulation. It was currently believed that large bodies of the Spanish troops had remained concealed in the forests of Luxemburg and Lorraine; while several regiments, which had remained in France in the service of the League, immediately re-entered the Netherlands. Alexander Farnese, prince of Parma, son of the former stadtholderess, came to the aid of his uncle, Don John, at the head of a large force of Italians; and these several reinforcements, with the German auxiliaries still in the country, composed an army of twenty thousand men. The army of the states-general was still larger; but far inferior in point of discipline. It was commanded by Antoine de Goignies, a gentleman of Hainault, and an old soldier of the school of Charles V.

After a sharp affair at the village of Riminants, in which the royalists had the worst, the two armies met at Gemblours, on the 31st of January, 1578; and the prince of Parma gained a complete victory, almost with his cavalry only, taking De Goignies prisoner, with the whole of his artillery and baggage. The account of his victory is almost miraculous. The royalists, if we are to credit their most minute but not impartial historian, had only one thousand two hundred men engaged; by whom six thousand were put to the sword, with the loss of but twelve men and little more than an hour's labor.

The news of this battle threw the states into the utmost consternation. Brussels being considered insecure, the archduke Mathias and his council retired to Antwerp; but the victors did not feel their forces sufficient to justify an attack upon the capital. They, however, took Louvain, Tirlemont, and several other towns; but these conquests were of little import in comparison with the loss of Amsterdam, which declared openly and unanimously for the patriot cause. The states-general recovered their courage, and prepared for a new contest. They sent deputies to the diet of Worms, to ask succor from the princes of the empire. The count palatine John Casimir repaired to their assistance with a considerable force of Germans and English, all equipped and paid by Queen Elizabeth. The duke of Alençon, brother of Henry III. of France, hovered on the frontiers of Hainault with a respectable army; and the cause of liberty seemed not quite desperate.

But all the various chiefs had separate interests and opposite views; while the fanatic violence of the people of Ghent sapped the foundations of the pacification to which the town had given its name. The Walloon provinces, deep-rooted in their attachment to religious bigotry, which they loved still better than political freedom, gradually withdrew from the common cause; and without yet openly becoming reconciled with Spain, they adopted a neutrality which was tantamount to it. Don John was, however, deprived of all chance of reaping any advantage from these unfortunate dissensions. He was suddenly taken ill in his camp at Bougy; and died, after a fortnight's suffering, on the 1st of October, 1578, in the thirty-third year of his age.

This unlooked-for close to a career which had been so brilliant, and to a life from which so much was yet to be expected, makes us pause to consider for a moment the different opinions of his times and of history on the fate of a personage so remarkable. The contemporary Flemish memoirs say that he died of the plague; those of Spain call his disorder the purple fever. The examination of his corpse caused an almost general belief that he was poisoned. "He lost his life," says one author, "with great suspicion of poison." "Acabo su vida, con gran sospecho de veneno."—Herrera. Another speaks of the suspicious state of his intestines, but without any direct opinion. An English historian states the fact of his being poisoned, without any reserve. Flemish writers do not hesitate to attribute his murder to the jealousy of Philip II., who, they assert, had discovered a secret treaty of marriage about to be concluded between Don John and Elizabeth of England, securing them the joint sovereignty of the Netherlands. An Italian historian of credit asserts that this ambitious design was attributed to the prince; and admits that his death was not considered as having arisen from natural causes. "E quindi nacque l'opinione dispersa allora, ch'egli mancasse di morte aiutata più tosto che naturale."—Bentivoglio. It was also believed that Escovedo, his confidential secretary, being immediately called back to Spain, was secretly assassinated by Antonio Perez, Philip's celebrated minister, and by the special orders of the king. Time has, however, covered the affair with impenetrable mystery; and the death of Don John was of little importance to the affairs of the country he governed so briefly and so ingloriously, if it be not that it added another motive to the natural hatred for his assumed murderer.

The prince of Parma, who now succeeded, by virtue of Don John's testament, to the post of governor-general in the name of the king, remained intrenched in his camp. He expected much from the disunion of his various opponents; and what he foresaw very quickly happened. The duke of Alençon disbanded his troops and retired to France; and the prince Palatine, following his example, withdrew to Germany, having first made an unsuccessful attempt to engage the queen of England as a principal in the confederacy. In this perplexity, the Prince of Orange saw that the real hope for safety was in uniting still more closely the northern provinces of the union; for he discovered the fallacy of reckoning on the cordial and persevering fidelity of the Walloons. He therefore convoked a new assembly at Utrecht; and the deputies of Holland, Guelders, Zealand, Utrecht, and Groningen, signed, on the 29th of January, 1579, the famous act called the Union of Utrecht, the real basis or fundamental pact of the republic of the United Provinces. It makes no formal renunciation of allegiance to Spain, but this is virtually done by the omission of the king's name. The twenty-six articles of this act consolidate the indissoluble connection of the United Provinces; each preserving its separate franchises, and following its own good pleasure on the subject of religion. The towns of Ghent, Antwerp, Bruges, and Ypres, soon after acceded to and joined the union.

The prince of Parma now assumed the offensive, and marched against Maestricht with his whole army. He took the place in the month of June, 1579, after a gallant resistance, and delivered it to sack and massacre for three entire days. About the same time Mechlin and Bois-le-duc returned to their obedience to the king. Hembyse having renewed his attempts against the public peace at Ghent, the Prince of Orange repaired to that place, re-established order, frightened the inveterate demagogue into secret flight, and Flanders was once more restored to tranquillity.

An attempt was made this year at a reconciliation between the king and the states. The emperor Rodolf II. and Pope Gregory XIII. offered their mediation; and on the 5th of April a congress assembled at Cologne, where a number of the most celebrated diplomatists in Europe were collected. But it was early seen that no settlement would result from the apparently reciprocal wish for peace. One point—that of religion, the main, and indeed the only one in debate—was now maintained by Philip's ambassador in the same unchristian spirit as if torrents of blood and millions of treasure had never been sacrificed in the cause. Philip was inflexible in his resolution never to concede the exercise of the reformed worship; and after nearly a year of fruitless consultation, and the expenditure of immense sums of money, the congress separated on the 17th of November, without having effected anything. There were several other articles intended for discussion, had the main one been adjusted, on which Philip was fully as determined to make no concession; but his obstinacy was not put to these new tests.