Three different attacks were carried on against this place: one by the hereditary prince of Hesse-Cassel; another by the celebrated Coehorn; and a third by lieutenant-general Fagel.

The garrison defended themselves vigorously till the fourteenth day of May, when the fort having been taken by assault, and the breaches rendered practicable, the marquis d'Alegre, the governor, ordered a parley to be beat; hostages were immediately exchanged; on the sixteenth the capitulation was signed; and in three days the garrison evacuated the place in order to be conducted to Luxembourg.

During the siege of Bonne, the mareschals Boufflers and Villeroy advanced with an army of forty thousand men towards Tongeren, and the confederate army, commanded by M.d'Auverquerque, was obliged at their approach to retreat under the cannon of Maestricht.

The enemy having taken possession of Tongeren, made a motion against the confederate army, which they found already drawn up in order of battle, and so advantageously posted, that, notwithstanding their great superiority in point of number, they would not hazard an attack, but retired to the ground from whence they had advanced.

Immediately after the reduction of Bonne, the duke of Marlborough, who had been present at the siege, returned to the confederate army in the Netherlands, now amounting to one hundred and thirty squadrons, and fifty-nine battalions.