In the winter the discontent broke out again. The soldiers had been most unjustly treated by the States, and there were long arrears of pay, and at first Sir John Wingfield espoused the cause of the men. Sir Francis Vere tried in vain to arrange matters. The Dutch authorities would not pay up the arrears, the men would not return to their duty until they did so, and at last became so exasperated that they ceased to obey their governor and opened communications with the enemy. Prince Maurice, who was now three and twenty years old, and devoted to martial pursuits and the cause of his countrymen, after consultation with Sir Francis Vere, laid siege to the town and made a furious assault upon it on the water aide. But the Dutch troops, although led by Count Solms and Count Philip of Nassau, were repulsed with great loss. The prince then promised not only a pardon, but that the demands of the garrison should be complied with; but it was too late, and four days later Gertruydenberg was delivered up by the mutineers to the Duke of Parma, the soldiers being received into the Spanish service, while Wingfield and the officers were permitted to retire. The States were furious, as this was the third city commanded by Englishmen that had been handed over to the enemy. The bad feeling excited by the treachery of Sir William Stanley and Roland Yorke at Deventer and Zutphen had died out after the gallant defence of the English at Sluys, but now broke out again afresh, and charges of treachery were brought not only against Wingfield but against many other English officers, including Sir Francis Vere. The queen, however, wrote so indignantly to the States that they had to withdraw their charges against most of the English officers. In May Lord Willoughby, who was still in London, resigned his command. A number of old officers of distinction who might have laid claims to succeed him, among them Sir John Norris, Sir Roger Williams, Sir Thomas Wilford, Sir William Drury, Sir Thomas Baskerville, and Sir John Burrough, were withdrawn from the Netherlands to serve in France or Ireland, and no general in chief or lieutenant general was appointed, Sir Francis Vere as sergeant major receiving authority to command all soldiers already in the field or to be sent out during the absence of the general and lieutenant general. His official title was Her Majesty's Sergeant Major in the Field. The garrisons in the towns were under the command of their own governors, and those could supply troops for service in the field according to their discretion.