The governor made a still greater mistake when, in his annoyance at the opposition of the Hollanders, he courted the democratic anti-Holland party in Utrecht, which had as its leader the ultra-Calvinist stadholder, Nieuwenaar, and caused one of his confidants, a Brabanter, Gerard Prounick, surnamed Deventer, to be elected burgomaster of Utrecht, although as a foreigner he was disqualified from holding that office. An even more arbitrary act was his creation of a Chamber of Finance armed with inquisitorial powers, thus invading the rights of the Provincial Estates and depriving the Council of State of one of its most important functions. To make matters worse, he appointed Nieuwenaar to preside over the new Chamber, with a Brabanter, Jacques Reingoud, as treasurer-general, and a Fleming, Daniel de Burchgrave, as auditor. The Estates of Holland, under the guidance of Oldenbarneveldt, prepared themselves to resist stubbornly this attempt to thrust upon them a new tyranny.
As a military leader Leicester was quite unfitted to oppose successfully such a general as Parma. Both commanders were in truth much hampered by the preparations that were being made by Philip for the invasion of England. The king could spare Parma but little money for the pay of his troops, and his orders were that the Spanish forces in the Netherlands should be held in reserve and readiness for embarkation, as soon as the Great Armada should hold command of the Channel. England was the first objective. When its conquest was accomplished that of the rebel provinces would speedily follow. On the other hand Elizabeth, always niggardly, was little disposed in face of the threatened danger to dissipate her resources by any needless expenditure. Leicester therefore found himself at the head of far too small a force to deal any effective blows at the enemy. He succeeded in capturing Doesburg, but failed to take Zutphen. It was in a gallant effort to prevent a Spanish convoy from entering that town that Sir Philip Sidney met his death at the combat of Warnsfeld (Sept. 22, 1586). An important fort facing Zutphen was however stormed, and here Leicester left Sir Robert Yorke with a strong garrison, and at the same time sent Sir William Stanley with 1200 men to be governor of Deventer. These appointments gave rise to much criticism that proved later to be fully justified, for both these officers were Catholics and had formerly been in the Spanish service. Leicester had also taken other steps that were ill-judged. West Friesland had for many years been united to Holland and was known as the North-Quarter. The governor-general, however, appointed Sonoy Stadholder of West Friesland, and was thus infringing the rights and jurisdiction of Maurice of Nassau. Maurice also held the post of Admiral-General of Holland and Zeeland, but Leicester took it upon himself to create three distinct Admiralty Colleges, those of Holland, Zeeland, and the North-Quarter, thus further dividing authority in a land where greater