In the autumn of 1827 the regiment marched to Newbridge. In the early part of the following year four troops proceeded to Dublin, and subsequently to Dundalk and Belturbet. In April it embarked at Donaghadee, landed at Portpatrick, and marched to Piershill barracks and Glasgow, and subsequently occupied Perth, with detachments in aid of the officers of the revenue at Forfar and Cupar Angus.

During the summer of 1829 the regiment marched to Birmingham and Coventry. In October one troop was employed in assisting the civil power at Atherstone; and in the beginning of April, 1830, another troop was similarly employed at Pamswick. In the middle of April the regiment marched to Exeter, Trowbridge, Dursley, and Wotton-under-Edge. Towards the end of the year several changes of quarters took place, and detachments were furnished in aid of the civil authorities during the election of Members of Parliament. Eventually the regiment was stationed at Dorchester and Blandford; and an addition of three horses was made to the establishment of each troop.

On the 22nd of April, 1831, his Majesty conferred the Colonelcy of the Third Dragoon Guards (vacant by the decease of General Sir William Payne) on Lieut.-General Sir Samuel Hawker, G.C.H.

In June one troop was actively employed in suppressing the violent proceedings of the pit and ironfoundry men at Merthyr-Tidvil and its vicinity. During the remainder of this year the regiment was almost constantly in motion to support the civil power, and to prevent the occurrence of serious breaches of the peace. The labouring classes, being strongly excited by designing men, frequently violated the laws, and burnt great quantities of agricultural property.

The subject of a reform in parliament had created considerable discussion and interest throughout the country, and the resistance of certain members to the extensive changes proposed in the representation and elective franchise had excited the indignation of the populace in various places, particularly at Bristol, of which city one of the members, Sir Charles Wetherall, was recorder. He arrived at Bristol on Saturday the 29th of October, to open the King's commission, when he was assailed by an outrageous rabble, with insult, menace, and showers of stones. The tumult increasing, the Riot Act was read, when the mob became more violent than before,—broke open the Mansion-house, demolished the windows, doors, and furniture, and prepared to set the building on fire. At this moment a troop of the 14th Light Dragoons arrived, and the Mansion-house was saved, and the rioters dispersed. On Sunday the mob again assembled, and plundered the Mansion-house, where they found a quantity of wine and spirits, and they soon became intoxicated. In this state the rioters became more furious than before. They broke open the Bridewell, liberated the prisoners, and set fire to the building. The new gaol and the Gloucester county prison were treated in like manner. The Bishop's palace, the Mansion-house, the Excise-office, the Custom-house, and many private dwellings, were plundered and set on fire, and several of the drunken rioters perished in the flames. In the midst of this scene of tumult and conflagration a detachment of the Third Dragoon Guards was seen endeavouring to arrest the progress of the mobs. Unfortunately the magistrates did not give the necessary instructions; and as the soldiers were proceeding in one direction, destruction was going on in another, and property to an immense amount was destroyed, before the exertions of the civil and military powers restored order. About one hundred of the rioters were killed or wounded before the tumult was suppressed; and one hundred and eighty were committed to prison, of whom fifty were capitally charged with rioting and burning.

In 1832 the regiment was stationed at Brighton, Chichester, and Worthing; and in August four troops proceeded to London, occupied Regent's Park barracks, and performed the duties of the metropolis during the absence of the Life Guards for the purpose of being reviewed by His Majesty. After performing this duty, the four troops returned to Brighton and Chichester.

In the early part of November, King William IV. and Queen Adelaide arrived at Brighton, and on the 30th of that month the officers of the regiment had the honour of dining with their Majesties at the Royal Pavilion: the band was in attendance during the evening, and also on several other occasions.

The regiment received orders to march to Dorchester in January, 1833; and, before it quitted Brighton, Lieut.-Colonel Story was honoured with the King's most gracious commands—'To make known to the officers, non-commissioned officers, and privates, His Majesty's entire approbation of their conduct while at Brighton.'

From Dorchester the regiment proceeded, in March of the same year, to Birmingham, where it remained the succeeding twelve months. In April, 1834, it marched to Liverpool, and, having embarked at that port for Ireland, landed in Dublin on the 1st of May.

After passing one year at Dublin, the regiment marched, in May, 1835, to Longford; remained at this station during the following twelve months, and proceeded, in May, 1836, to Ballincollig.

Having spent a period of three years in Ireland, the regiment marched to Cork; embarked from thence on the 14th of June, 1837, for England; landed at Bristol on the following day, and proceeded to Ipswich; where it has remained until the spring of 1838, which brings the record of this distinguished corps to a conclusion.

Few cavalry regiments have been favoured with a greater number of opportunities of acquiring honour by deeds of valour in action with the enemies of the British nation than the Third, or Prince of Wales' Regiment of Dragoon Guards: it has served under Marlborough and Wellington—names immortalized in the history of Europe. As a regiment of Horse, it fought at Blenheim, Ramilies, and Malplaquet—battles which shed lustre on the British arms. As a corps of Dragoon Guards, it gained immortal fame at Corbach and Warbourg, and signalized itself in other actions in Germany. In Flanders, under his Royal Highness the Duke of York, it earned new laurels; and, in the Peninsular War, it added to its previous reputation by its gallant bearing on all occasions, particularly at the battle of Albuhera. On this subject, Viscount Beresford observed, in a letter to the Adjutant-General, 'The conduct of this regiment, during the period it was under my command, deserved, on all occasions, and especially at the battle of Albuhera, my highest encomiums.' On home service, it has acquired the confidence and approbation of its sovereign, and the commendations of the general officers under whose command it has been placed.