There were endless negotiations inspired by the States-General, the German Emperor, and the governments of France and England to secure peace and a settlement of the Netherlands affairs, but these, owing mostly to insincere diplomacy, were ineffective.
In the meantime, the union of Holland and Zealand had been accomplished, with the Prince of Orange as sovereign. The representatives of various provinces thereafter met with deputies from Holland and Zealand in Utrecht in January, 1579, and agreed to a treaty of union which was ever after regarded as the foundation of the Netherlands Republic. The contracting provinces agreed to remain eternally united, while each was to retain its particular privileges, liberties, customs, and laws. All the provinces were to unite to defend each other with life, goods, and blood against all forces brought against them in the king's name, and against all foreign potentates. The treaty also provided for religious peace and toleration. The Union of Utrecht was the foundation of the Netherlands Republic, which lasted two centuries.
For two years there were a series of desultory military operations and abortive negotiations for peace, including an attempt--which failed--to purchase the Prince of Orange. The assembly of the united provinces met at The Hague on July 26, 1581, and solemnly declared their independence of Philip and renounced their allegiance for ever. This act, however, left the country divided into three portions--the Walloon or reconciled provinces; the united provinces under Anjou; and the northern provinces under Orange.
Early in February, 1582, the Duke of Anjou arrived in the Netherlands from England with a considerable train. The articles of the treaty under which he was elected sovereign as Duke of Brabant made as stringent and as sensible a constitutional compact as could be desired by any Netherland patriot. Taken in connection with the ancient charters, which they expressly upheld, they left to the new sovereign no vestige of arbitrary power. He was the hereditary president of a representative republic.
The Duke of Anjou, however, became discontented with his position. Many nobles of high rank came from France to pay their homage to him, and in the beginning of January, 1583, he entered into a conspiracy with them to take possession, with his own troops, of the principal cities in Flanders. He reserved to himself the capture of Antwerp, and concentrated several thousands of French troops at Borgehout, a village close to the walls of Antwerp. A night attack was treacherously made on the city, but the burghers rapidly flew to arms, and in an hour the whole of the force which Anjou had sent to accomplish his base design was either dead or captured. The enterprise, which came to be known as the "French Fury," was an absolute and disgraceful failure, and the duke fled to Berghem, where he established a camp. Negotiations for reconciliation were entered into with the Duke of Anjou, who, however, left for Paris in June, never again to return to the Netherlands.