In February 1813 the battalion marched from Falgosa de Medelina to Toraish, where it remained until May. There Lieut.-Colonel Davies, in consequence of ill-health, left the corps for England, when the command devolved on Brevet Lieut.-Colonel John Ward.
On the 14th of May the allied army again advanced, crossed the Douro on the 19th, and halted on the 20th at Toro de Monte Corva; on the 24th reached Malhadus, and halted until the 27th, and on the 29th entered Spain by crossing the Corsa, near Murga, where the troops, of which the Thirty-sixth formed part, halted until the 31st. On the 1st of June they crossed the Esla by a pontoon bridge, and continued the march until the 19th, when they halted at Madina to observe General Clausel’s corps, and cover the British stores and ammunition.
The battalion reached Vittoria on the 22d of June, the day following the victory gained there by the Marquis of Wellington, and halted at that place during the 23d and 24th, still observing General Clausel. On the 26th the battalion marched to Mondragoa, and afterwards retrograded to Montinca, whence Clausel was pursued to the bridge of Lagosa, where the battalion arrived on the 30th of June; and, marching again on the 1st of July, it encamped near Pampeluna on the 5th of that month.
There the battalion halted until the 13th of July, and on the following day it marched to Lanz, where it remained until the 22d; and on the 23d it crossed the Low Pyrenees to the valley of San Estevan; on the 27th the battalion re-crossed the Pyrenees to Torrossa.
On the 28th of July the battalion was in position near Pampeluna, and was warmly engaged, the light company under Captain William Campbell being detached in smart skirmishing. On the following day both armies remained quiet; but on the 30th of July the battalion was again engaged early in the morning, the light company being, as before, detached, under Captain Campbell, to expel the enemy from the village of Sorauren. About eight o’clock Major Martin Leggatt arrived, and assumed the command, when Brevet Lieut.-Colonel Ward immediately proceeded to join the light company in Sorauren. Marshal Soult was however foiled, and about two o’clock in the afternoon the enemy was in general retreat, being pursued by the whole army.
In approbation of the conduct of Major Leggatt, Brevet Lieut.-Colonel Ward and Captain Campbell on the three last-mentioned days, His Royal Highness the Prince Regent, in the name and behalf of His Majesty, was graciously pleased to present each of them with a medal for the battles of the Pyrenees, and to promote Captain Campbell to the brevet rank of Major.
The Thirty-sixth subsequently received the Royal Authority to bear on the regimental colour and appointments the word “Pyrenees,” in commemoration of the services of the first battalion in the actions which occurred there, and which have been designated the “Battles of the Pyrenees.”
On the 1st of August the battalion reached Bargetta, and halted there until the 3d; on the following day it pursued the enemy to the valley of Alduides; and on the 5th and 6th the battalion was in position;—on the 7th it marched and encamped in the valley near Maya, and on the 8th moved to the camp at the Pass of Maya, where the battalion remained until the 9th of September.
Major William Cross arrived at the camp of Maya on the 10th of September, and resumed the command of the battalion.
The battalion was present in the affair of Urdax on the 7th of October, and had forty-six rank and file killed and wounded.