About this period the distinguishing colour, or facing, of the regiment was changed from _white_ to _light blue_. [Sidenote: 1716] When the rebellion of the Earl of Mar, in favour of the Pretender, broke out in Scotland, the FIFTH HORSE were directed to hold themselves in readiness to proceed to England on the shortest notice; but the rebellion was suppressed by the forces under the Duke of Argyle, without the aid of this corps being required. [Sidenote: 1718] Tranquillity having been restored, the establishment of the regiment was reduced to 24 private men per troop. [Sidenote: 1719] [Sidenote: 1732] The decease of Major-General Davenport occurred on the 2nd of July, 1719; and on the 6th of that month King George I. conferred the Colonelcy of the FIFTH HORSE on Major-General Owen Wynne, from a Regiment of Dragoons, now 9th Lancers: this officer commanded the regiment upwards of thirteen years, and was removed, in August, 1732, to the Royal Irish (late Fifth) Regiment of Dragoons. In September, 1732, King George II. appointed Lieutenant-General Thomas Pearce to the Colonelcy of the FIFTH HORSE, from the 5th Regiment of Foot. [Sidenote: 1739] Lieutenant-General Pearce commanded the regiment seven years, and, dying in the summer of 1739, was succeeded in the Colonelcy by Major-General James Lord Tyrawley, from the Royal Regiment of Fusiliers, his commission bearing date the 26th of August, 1739. On the 27th of the following month the regiment formed part of a splendid cavalcade which attended his grace the Duke of Devonshire on his arrival at Dublin as Lord Lieutenant of Ireland, from the water-side to the castle. [Sidenote: 1740] The decease of Charles VI., Emperor of Germany, having been followed by a contest between his daughter, the Archduchess Maria-Theresa and the Elector of Bavaria, respecting the sovereignty of Bohemia and Hungaria, King George II. resolved to support the house of Austria;--the strength of the army was augmented, and 10 men and horses were added in 1740 to each troop of the FIFTH Regiment of Horse. During the summer of this year (1740) the populace of Dublin broke out into open riot, committing many acts of violence and outrage, in consequence of a scarcity of corn, and TYRAWLEY'S HORSE were ordered out and directed to patrole the streets night and day. [Sidenote: 1741] [Sidenote: 1742] [Sidenote: 1743] In April of the following year a further augmentation of nine men per troop was made to the establishment; and in 1742 a British army was sent to Flanders to support the pretensions of the Archduchess Maria-Theresa, as Queen of Hungaria, against the power of France and the Elector of Bavaria; but this regiment was detained in Ireland. In the beginning of 1743 the regiment furnished a draft of ten men and horses per troop to join the regiments of horse on foreign service.