The O'Mores, O'Connors and O'Carrols,
invade the Pale

In 1521 the O-Mores of Leix confederating with the O-Connors, O-Carrols, and other Irish, invaded the Pale. The earl of Surrey, accompanied by Thomas Tue, mayor of Dublin, invaded Leix. For the Irish divided their forces into several parties, and, having heard that the carriages and baggage; of the army were lightly guarded, they took the opportunity of attacking it with great success, several of the lord lieutenant's soldiers fled.

The carriages being recovered, the army marched into Leix, where the lord lieutenant escaped an imminent danger. The lord lieutenant's army wasted Leix, Immediately turned his arms towards Offaly, and in a day or two took the strong monastery of Monasterpheoris, and burned the country till the 23d of July.

O'Connor, hoping to preserve his country by making a diversion, marched into Meath, where he was pursued by the lord lieutenant who obtained an easy victory, many of O'Connors army were slaughtered in the pursuit. Surry and his army returned to Dublin with much spoil.