A few days after the appearance of the Declaration of Indulgence, war was proclaimed against the United Provinces. By sea the Dutch maintained the struggle with honour; but on land they were at first borne down by irresistible force. A great French army passed the Rhine. Fortress after fortress opened its gates. Three of the seven provinces of the federation were occupied by the invaders. The fires of the hostile camp were seen from the top of the Stadthouse of Amsterdam. The Republic, thus fiercely assailed from without, was torn at the same time by internal dissensions. The government was in the hands of a close oligarchy of powerful burghers. There were numerous selfelected Town Councils, each of which exercised within its own sphere, many of the rights of sovereignty. These councils sent delegates to the Provincial States, and the Provincial States again sent delegates to the States General. A hereditary first magistrate was no essential part of this polity. Nevertheless one family, singularly fertile of great men, had gradually obtained a large and somewhat indefinite authority. William, first of the name, Prince of Orange Nassau, and Stadtholder of Holland, had headed the memorable insurrection against Spain. His son Maurice had been Captain General and first minister of the States, had, by eminent abilities and public services, and by some treacherous and cruel actions, raised himself to almost kingly power, and had bequeathed a great part of that power to his family. The influence of the Stadtholders was an object of extreme jealousy to the municipal oligarchy. But the army, and that great body of citizens which was excluded from all share in the government, looked on the Burgomasters and Deputies with a dislike resembling the dislike with which the legions and the common people of Rome regarded the Senate, and were as zealous for the House of Orange as the legions and the common people of Rome for the House of Caesar. The Stadtholder commanded the forces of the commonwealth, disposed of all military commands, had a large share of the civil patronage, and was surrounded by pomp almost regal.
Prince William the Second had been strongly opposed by the oligarchical party. His life had terminated in the year 1650, amidst great civil troubles. He died childless: the adherents of his house were left for a short time without a head; and the powers which he had exercised were divided among the Town Councils, the Provincial States, and the States General.