On the a 15th January, 1583, the day fixed for the execution of the plot, the French commandant of Dunkirk, Captain Chamois, skillfully took advantage of a slight quarrel between the citizens and the garrison, to secure that important frontier town. The same means were employed simultaneously, with similar results, at Ostend, Dixmuyde, Denremonde, Alost, and Vilvoorde, but there was a fatal delay at one important city. La Fougere, who had been with Chamois at Dunkirk, was arrested on his way to Bruges by some patriotic citizens who had got wind of what had just been occurring in the other cities, so that when Palette, the provost of Anjou, and Colonel la Rebours, at the head of fifteen hundred French troops, appeared before the gates, entrance was flatly refused. De Grijse, burgomaster of Bruges, encouraged his fellow townsmen by words and stout action, to resist the nefarious project then on foot against religious liberty and free government, in favor of a new foreign tyranny. He spoke to men who could sympathize with, and second his courageous resolution, and the delay of twenty-four hours, during which the burghers had time to take the alarm, saved the city. The whole population was on the alert, and the baffled Frenchmen were forced to retire from the gates, to avoid being torn to pieces by the citizens whom they had intended to surprise.
At Antwerp, meanwhile, the Duke of Anjou had been rapidly maturing his plan, under pretext of a contemplated enterprise against the city of Endhoven, having concentrated what he esteemed a sufficient number of French troops at Borgerhout, a village close to the walls of Antwerp.
On the 16th of January, suspicion was aroused in the city. A man in a mask entered the main guard-house in the night, mysteriously gave warning that a great crime was in contemplation, and vanished before he could be arrested. His accent proved him to be a Frenchman. Strange rumors flew about the streets. A vague uneasiness pervaded the whole population as to the intention of their new master, but nothing was definitely known, for of course there was entire ignorance of the events which were just occurring in other cities. The colonels and captains of the burgher guard came to consult the Prince of Orange. He avowed the most entire confidence in the Duke of Anjou, but, at the same time; recommended that the chains should be drawn, the lanterns hung out, and the drawbridge raised an hour earlier than usual, and that other precautions; customary in the expectation of an attack, should be duly taken. He likewise sent the Burgomaster of the interior, Dr. Alostanus, to the Duke of Anjou, in order to communicate the suspicions created in the minds of the city authorities by the recent movements of troops.