Douglas summoned the Irish garrison to surrender. Colonel Richard Grace, the gallant old governor, returned a passionate defiance. "These are my terms," he said, discharging a pistol at the messenger: "when my provisions are consumed, I will defend my trust until I have eaten my boots."

Abandoning as indefensible the English part of the town, situated on the east side of the Shannon, Grace set fire to it, and retired with all his forces to the western side, blowing up an arch of the bridge behind him. The English then brought up the few cannon they had with them, and commenced battering the walls. The Irish had more cannon, and defended themselves with vigour. The besiegers made a breach in the castle, but it was too high and too small for an assault. "Notwithstanding this," says Rapin, "the firing continued very brisk on both sides; but the besiegers having lost Mr. Neilson, their best gunner, and the cavalry suffering very much for want of forage; and at the same time it being reported that Sarsfield was advancing with fifteen thousand men to relieve the place, Douglas held a council of war, wherein it was thought fit to raise the siege, which he accordingly did on the 25th, having lost near four hundred men before the town, the greatest part of whom died of sickness."

Thus, after a week's ineffectual siege, Douglas left Athlone, and made all haste to rejoin the army of William, which had already reduced the most important towns in the south of Ireland. On the 7th of August he rejoined William at Cahirconlish, a few miles west of Limerick. The flower of the Irish army was assembled at Limerick. The Duke of Berwick and General Sarsfield occupied the city with their forces. The French general, Boileau, commanded the garrison. The besieged were almost as numerous as the besiegers. William, by garrisoning the towns of which he took possession, had reduced his forces to about twenty thousand men.

Limerick was fortified by walls, batteries, and ramparts. It was also defended by a castle and citadel. It had always been a place of great strength. The chivalry of the Anglo-Norman monarch, the Ironsides of Cromwell, had been defeated under its walls; and now the victorious army of William III. was destined to meet with a similar repulse.

Limerick is situated in an extensive plain, watered by the noble Shannon. The river surrounds the town on three sides. Like Athlone, the city is divided into the English and Irish towns, connected together by a bridge. The English town was much the strongest. It was built upon an island, surrounded by morasses, which could at any time be flooded on the approach of an enemy. The town was well supplied with provisions—all Clare and Galway being open to it, from whence it could draw supplies.

Notwithstanding the strength of the fortress, William resolved to besiege it. He was ill supplied with cannon, having left his heavy artillery at Dublin. He had only a field train with him, which was quite insufficient for his purpose. William's advance-guards drove the Irish outposts before them; the pioneers cutting down the hedges and filling up the ditches, until they came to a narrow pass between two bogs, where a considerable body of Irish horse and foot were assembled to dispute the pass.

Two field-pieces were brought up, which played with such effect upon the Irish horse that they soon quitted their post. At the same time Colonel Earle, at the head of the English foot, attacked the Irish who were firing through the hedges, so that they also retired after two hours' fighting. The Irish were driven to the town walls, and William's forces took possession of two important positions, Cromwell's fort and the old Chapel. The Danes also occupied an old Danish fort, built by their ancestors, of which they were not a little proud.

The army being thus posted, a trumpeter was sent, on the 9th of August, to summon the garrison to surrender. General Boileau answered, that he intended to make a vigorous defence of the town with which his Majesty had intrusted him. In the meantime, William had ordered up his train of artillery from Dublin. They were on their way to join him, when a spy from William's camp went over to the enemy, and informed them of the route, the motions, and the strength of the convoy. Sarsfield at once set out with a strong body of horse. He passed the Shannon in the night, nine miles above Limerick, lurked all day in the mountains near Ballyneety, and waited for the approach of the convoy.

The men of William's artillery, seeing no enemy, turned out their horses to graze, and went to sleep in the full sense of security. Sarsfield's body of horse came down upon them, slew or dispersed the convoy, and took possession of the cannon. Sarsfield could not, however, take the prizes into Limerick. He therefore endeavoured to destroy them. Cramming the guns with powder up to their muzzles, and burying their mouths deep in the earth, then piling the stores, waggons, carriages, and baggage over them, he laid a train and fired it, just as Sir John Lanier, with a body of cavalry, was arriving to rescue the convoy. The explosion was tremendous, and was heard at the camp of William, more than seven miles off. Sarsfield's troops returned to Limerick in triumph.

Notwithstanding these grievous discouragements, William resolved to persevere. He recovered two of the guns, which remained uninjured. He obtained others from Waterford. The trenches were opened on the 17th of August. A battery was raised below the fort to the right of the trenches. Firing went on on both sides. Several redoubts were taken. By the 25th, the trenches were advanced to within thirty paces of the ditch near St. John's Gate, and a breach was made in the walls about twelve yards wide.