Obviously, the campaign had failed. Utrecht and Holland were as far out of the Catholic general’s reach as the stars in the sky, but at least, with his large armies, he could earn a few trophies, barren or productive, as it might prove, before winter, uniting with the deluge, should drive him from the field.
On the 3rd August, he laid siege to Groll (or Groenlo), a fortified town of secondary importance in the country of Zutphen, and, squandering his men with much recklessness, in his determination not to be baffled, reduced the place in eleven days. Here he paused for a breathing spell, and then, renouncing all his schemes upon the inner defences of the republic, withdrew once more to the Rhine and laid siege to Rheinberg.
This frontier place had been tossed to and fro so often between the contending parties in the perpetual warfare, that its inhabitants must have learned to consider themselves rather as a convenient circulating medium for military operations than as burghers who had any part in the ordinary business of life. It had old-fashioned defences of stones which, during the recent occupation by the States, had been much improved, and had been strengthened with earthworks.
Before it was besieged, Maurice sent his brother Frederic Henry, with some picked companies, into the place, so that the garrison amounted to three thousand effective men.
The Prince de Soubise, brother of the Duc de Rohan, and other French volunteers of quality, also threw themselves into the place, in order to take lessons in the latest methods of attack and defence. It was now admitted that no more accomplished pupil of the stadholder in the beleaguering art had appeared in Europe than his present formidable adversary. On this occasion, however, there was no great display of science. Maurice obstinately refused to move to the relief of the place, despite all the efforts of a deputation of the States-General who visited his camp in September, urging him strenuously to take the chances of a stricken field.
Nothing could induce the stadholder, who held an observing position at Wesel, with his back against the precious watery quadrilateral, to risk the defence of those most vital lines of the Yssel and the Waal. While attempting to save Rheinberg, he felt it possible that he might lose Nymegen, or even Utrecht. The swift but wily Genoese was not to be trifled with or lost sight of an instant. The road to Holland might still be opened, and the destiny of the republic might hang on the consequences of a single false move. That destiny, under God, was in his hands alone, and no chance of winning laurels, even from his greatest rival’s head, could induce him to shrink from the path of duty, however obscure it might seem. There were a few brilliant assaults and sorties, as in all sieges, the French volunteers especially distinguishing themselves; but the place fell at the end of forty days. The garrison marched out with the honours of war. In the modern practice, armies were rarely captured in strongholds, nor were the defenders, together with the population, butchered.