On the 16th of September one troop of the regiment attacked an immense number of rapparees who were proceeding from Cork to Lismore, and having routed them and killed forty, took three prisoners. Two days afterwards, as Lieutenant Kelly of the regiment was out with a small party reconnoitring, he was surrounded and taken prisoner. [Sidenote: 1691] The regiment passed a part of the winter at Clonmel, and in February 1691, it was employed on an expedition to _Streamstown_, when the advanced guard highly distinguished itself; and shortly afterwards its colonel, the gallant LEVESON, was promoted to the rank of brigadier-general. In May it was encamped at Mullingar. The Irish being strengthened from France, and the English from Scotland, both armies took the field in the beginning of June, when General De Ginkell, who was left in command by King William, advanced through Mullingar,--captured Ballymore, and besieged Athlone, which was gallantly stormed and taken on the 30th of June. The town having been put in a posture of defence, the army advanced to Ballinasloe, and on Sunday, the 12th of July, advanced in four columns against the Irish, who were strongly posted near the village of _Aghrim_; their right flank and centre being covered by a morass, and the remainder of their front by enclosures, terminating at the castle of Aghrim, on which their left rested. LEVESON'S troopers were formed in brigade with the royal Irish dragoons commanded by Brigadier-General Villiers, and posted on the right of the line. The action was well contested on both sides. At length the Blues, Langston's, and Byerley's horse, a squadron of Ruvigny's French Protestants, and LEVESON'S dragoons, forced the pass at the castle of Aghrim, and, by a gallant charge, decided the fate of the day. LEVESON'S gallant troopers rushed forward with their wonted bravery, and overthrew all opposition. In opposing this attack in person, the enemy's general, ST. RUTH, was killed by a cannon ball, and the Irish giving way, were pursued with great slaughter by the cavalry towards Loughrea. The regiment was thanked by the Commander-in-Chief for its excellent conduct. It lost in this action seven men killed, and five wounded.