[6] After the Glorious Revolution of 1688, the regiment served in the Williamite War in Ireland, including fighting at the Battle of the Boyne and the First Siege of Limerick.

[7] When the Nine Years' War ended in 1697, the regiment escaped disbandment by being made part of the Irish military establishment, where it remained until the creation of the United Kingdom in 1801.

It was engaged in many of Marlborough's battles and sieges, including Blenheim, Ramillies and Malplaquet; after the Peace of Utrecht in 1713, it resumed garrison duties in Ireland, where it spent most of the next 80 years.

[8] The unit returned to Ireland and helped suppress the 1798 Irish Rebellion, including the battles of Arklow, Vinegar Hill and Ballinamuck.

The Battle of Salamanca in July 1812 is considered one of Wellington's greatest victories and Le Marchant's attack as the 'single most destructive charge made by a brigade of cavalry in the whole Napoleonic period.