The English and Enniskilleners entered Cavan, and at once began to plunder the place.
Hearing what was going on, the Duke of Berwick sallied out from his fort to attack them, and gained considerable advantage.

Brigadier Wolseley, being unable to restore discipline among the Enniskilleners, who formed the great majority of his force, ordered the town to be set on fire in several places.

The troops then collected, and repulsed the Irish with considerable loss.
The Duke of Berwick had two hundred killed, amongst whom were Brigadier Nugent and many officers.

As the Irish remained in possession of the fort, and the town was almost entirely destroyed by fire, Brigadier Wolseley returned with his force to Dundalk.
Shortly afterwards, the Fort of Charlemont was invested by a strong detachment of Schomberg's army.

Teigue O'Regan, the veteran governor, defended the place with the greatest bravery, and did not capitulate until the 14th of May, when the last ounce of provisions was consumed.
The garrison were allowed honourable terms, and the eight hundred men who defended the place, with their arms and baggage, and some two hundred women and children, were allowed to march away.