The citizens of Antwerp had beheld the first operations of the enemy against their town with the proud security with which the sight of their invincible river inspired them. This confidence was also in a degree justified by the opinion of the Prince of Orange, who, upon the first intelligence of the design, had said that the Spanish army would inevitably perish before the walls of Antwerp. That nothing, however, might be neglected, he sent, a short time before his assassination, for the burgomaster of Antwerp, Philip Marnix of St. Aldegonde, his intimate friend, to Delft, where he consulted with him as to the means of maintaining defensive operations. It was agreed between then that it would be advisable to demolish forthwith the great dam between Sanvliet and Lillo called the Blaaugarendyk, so as to allow the waters of the East Scheldt to inundate, if necessary, the lowlands of Bergen, and thus, in the event of the Scheldt being closed, to open a passage for the Zealand vessels to the town across the inundated country. Aldegonde had, after his return, actually persuaded the magistrate and the majority of the citizens to agree to this proposal, when it was resisted by the guild of butchers, who claimed that they would be ruined by such a measure; for the plain which it was wished to lay under water was a vast tract of pasture land, upon which about twelve thousand oxen--were annually put to graze. The objection of the butchers was successful, and they managed to prevent the execution of this salutary scheme until the enemy had got possession of the dams as well as the pasture land.