While the formation of the regiment was in progress, the rebel army was defeated at Sedgemoor, and the Duke of Monmouth was captured and beheaded. Sir Edward Hales's regiment was, however, one of the corps which the King resolved to retain in his service; the establishment was fixed at ten companies of sixty men each, and in the middle of August the regiment was encamped on Hounslow-heath, where it was reviewed by His Majesty; it afterwards marched to Gravesend and Tilbury, detaching two companies to Jersey, one to Guernsey, and two to Windsor.
1686
On the 1st of January, 1686, the establishment was estimated at the following numbers and rates of pay, viz.:—
1687
The regiment was again encamped on Hounslow-heath in the summer of 1687, and a grenadier company was added to its establishment. At this period the following officers were holding commissions in the regiment, viz.:—
| Captains. | Lieutenants. | Ensigns. |
| Sir Edw. Hales, (Col.) | Thomas Butler | Dudley Van Burgh |
| G. Barclay, (Lt.-Col.) | Robert Seaton | Austin Belson |
| John Gifford, (Major) | Richard Boucher | Thomas Heyward |
| John Chappell | Gaven Talbot | Philip Overton |
| Rowland Watson | James Nicholson | Dudley Van Colster |
| Thomas Weld | Bryce Blair | Clifford Brexton |
| George Latton | William Carew | George Blathwayt |
| Richard Brewer | Nicholas Morgan | Edward Hales |
| Thomas Gifford | Edward Gifford | Edward Pope |
| George Aylmer | Augustin Gifford | Cæsar Gage |
| Peter Shackerly | {William Fielding } | Grenadier Company |
| {Francis Sanderson } | ||
| Chaplain, Nicholas Trapps.—Adjutant, James Nicholson. | ||
| Chirurgeon, John Ridley.—Quarter-Master, Edward Syng. | ||
After passing in review before the King and Queen, and other members of the royal family, the regiment struck its tents and marched to Plymouth, where it was stationed during the winter.
1688
From Plymouth the regiment marched to London in June, 1688, and took the duty at the Tower until the middle of August, when it was relieved by the Royal Fusiliers, and marched to Canterbury, and in September to Salisbury.