Rivalry growing warmer, on account of this difference of religion, between the respective partisans of Neuburg and Brandenburg, an attempt was made in Dusseldorf by a sudden entirely unsuspected rising of the Brandenburgers to drive their antagonist colleagues and their portion of the garrison out of the city. It failed, but excited great anger. A more successful effort was soon afterwards made in Julich; the Neuburgers were driven out, and the Brandenburgers remained in sole possession of the town and citadel, far the most important stronghold in the whole territory. This was partly avenged by the Neuburgers, who gained absolute control of Dusseldorf. Here were however no important fortifications, the place being merely an agreeable palatial residence and a thriving mart. The States-General, not concealing their predilection for Brandenburg, but under pretext of guarding the peace which they had done so much to establish, placed a garrison of 1400 infantry and a troop or two of horse in the citadel of Julich. Dire was the anger not unjustly excited in Spain when the news of this violation of neutrality reached that government. Julich, placed midway between Liege and Cologne, and commanding those fertile plains which make up the opulent duchy, seemed virtually converted into a province of the detested heretical republic. The German gate of the Spanish Netherlands was literally in the hands of its most formidable foe. The Spaniards about the court of the Archduke did not dissemble their rage. The seizure of Julich was a stain upon his reputation, they cried. Was it not enough, they asked, for the United Provinces to have made a truce to the manifest detriment and discredit of Spain, and to have treated her during all the negotiation with such insolence? Were they now to be permitted to invade neutral territory, to violate public faith, to act under no responsibility save to their own will? What was left for them to do except to set up a tribunal in Holland for giving laws to the whole of Northern Europe? Arrogating to themselves absolute power over the controverted states of Cleve, Julich, and the dependencies, they now pretended to dispose of them at their pleasure in order at the end insolently to take possession of them for themselves.