In modern times, the importance of Carlisle as a fortress has inevitably declined; and it is at present regarded as a venerable relic of former strength, rather than as a place of defence. But, in ancient days, the Warden of the Marches, selected from among the nobles of tried fidelity and courage, attracted to the castle of Carlisle a host of youthful aspirants for military renown, who there sought to be trained to arms, amid contests not depending upon a single achievement, but requiring watchfulness, patient labour, and skill, slowly and painfully to be acquired.

Founded by William Rufus, who restored the city after it had lain two hundred years in ruins, owing to the depredations of the Danes; and improved and enlarged successively by Richard the Third and Henry the Eighth; the castle had received the unhappy Mary Stuart: and here she was treated with an insidious respect which soon threw off the mask. In the time of Queen Elizabeth, the citadel, which was entirely built by Henry the Eighth, fell into decay; and after the prohibition of all incursions on England on the part of King James the Sixth, Carlisle ceased to be of so much importance as a military possession; and its position, as one of the keys of England, did not avail to secure any great attention to its dilapidated state. At the time of Charles Edward's arrival in Cumberland, the fortifications of the City had been neglected for several centuries; but it still bore the outward aspect of former strength.

The works, which had thus been left to moulder away, were in the form of a triangle, and were separated from the town by a deep ditch. Upon the east angle, which is also cut off from the Parade by a ditch, is seated the Castle, properly so called, though the whole generally goes by that name. These works consist of a dungeon, the walls of which are twelve feet in thickness; a tower, called the Captain's Tower; two gates, one to each ward; there being an inward and an outward ward. In the castle there is a great chamber, and a hall, but no storehouse for ammunition. In the walls of the town, three gateway towers, a semi-circular bastion called Springeld Tower, and the citadel, complete the fortifications: unless we comprise several square towers with which the city walls are furnished; especially one at the west sally-port, and the Tile Tower, both of considerable strength.[77]

The foreground of the castle is formed of green and level meadows washed by the river Eden; and, in modern days, two fine stone bridges add to the beauty of the scene. The hanging banks are crowned with the village and church of Stanwix, and the mountains of Bewcastle form the distance. "To the south," to use the words of Hutchinson in his History of Cumberland, "you command the plains towards Penrith, shut in on either side with a vast range of mountains, over which Crossfell and Skiddaw are distinctly seen greatly eminent. To the east a varied tract of cultivated country, scattered over with villages and hamlets, mingle beautifully with woodlands on the extensive landscape; the distant horizon formed by the heights of Northumberland. To the west, the Solway Frith sparkles out, a shining expanse of waters, flowing along a cultivated tract of land on the English coast; on the other, the bold heights of Weffel and a chain of mountains extend towards the sea."[78]

When Charles Edward spread out his forces before Carlisle, the garrison within its mouldering walls was composed of a company of invalids, under the command of Colonel Durand; but the Cumberland militia were almost all collected within the city walls. Colonel Durand, however, as well as the Mayor of the place, showed a spirit of defence; and the latter issued a proclamation informing the inhabitants that he was not Paterson, a Scotchman, but Pattieson, a true-born Englishman, who was determined to hold out the city to the last. Since Charles had no battering cannon, it appeared impossible to reduce the castle if it were well-defended; but it was resolved to make the attempt. Whilst he was meditating an attack, the news that Wade's army was marching from Newcastle drew him for some days from continuing these operations. The report proved, however, to be groundless; and the Duke of Perth was sent, therefore, with several regiments to begin the siege.

The Jacobite army had all crossed the river Eden at Rowcliff, four miles below Carlisle; and next day they marched to Harraby, Blackhall, and Boutcherby, to the southward of Carlisle. At Harraby Lord George Murray remained, in order to cover the siege; that place being most contiguous to Carlisle, and on the highway to Penrith: the other troops under his command lay in the adjoining villages. The Duke of Perth had the direction of the trenches. It was here that an event occurred, which shortly afterwards excited the greatest discontent among the followers of Charles Edward.[79]

The attack upon the city was made from Stanwix Bank; the Marquis of Tullibardine, who had at length joined the insurgent army, with his tenantry, assisting the Duke of Perth. As it was market-day on the ninth, when the Jacobites made their appearance within a quarter of a mile of Carlisle, the Highland soldiers were mingled with the market-people returning home, so that the garrison dared not fire upon them. On the following day, the city was attacked in three places; but the Marquis of Tullibardine, who commanded a four-gun battery, planted at the entrance of a lane, was heard to say to his followers, "Gentlemen, we have not metal for them; retreat." After three days' attack, however, the courage of Mr. Pattieson, and the strength of the garrison, gave way. The valiant Mayor forgot his English birth so far as to hang out a white flag, and to request a capitulation for the town. The garrison and townsmen of Carlisle, in the opinion of the writers of the day, merited no more credit than that of Edinburgh, in their defence and capitulation. In the siege, the Highland army had only one man killed, and another wounded; and the reduction of Carlisle gave great, but not lasting, lustre to their arms.

On entering Carlisle, Lord George Murray is said, in the newspapers of the day, to have encountered an old friend, who asked him how he could be so rash as to lend himself to the aid of a hopeless and futile invasion. To this Lord George is declared to have replied, that he was well aware that the cause was hopeless; but that, having once engaged to maintain it, honour compelled him to continue his exertions.[80] It was not, however, long before those fatal dissensions appeared which effectually defeated all that valour or fidelity could effect to save Charles Edward from defeat.

It was, perhaps, the well-earned popularity of the Duke of Perth, his forbearance, and the gratitude evinced towards him by the inhabitants of Carlisle, as he rode triumphantly through their city, that first roused the jealousy of Lord George Murray's proud nature. The disinterested conduct of the Duke of Perth, as soon as he became informed of the sentiments entertained towards him by Lord George Murray, was worthy of himself. That brave and excellent young man modestly withdrew from a rivalry which, he justly concluded, must be injurious to the cause of that Prince whose interests he had espoused; for few men could cope with the natural abilities, the force of character, and the experience of Lord George. He was by far the most able general that appeared in either of the two insurrections in the cause of the Stuarts. "His personal hardihood and bravery," remarks Lord Mahon, "might be rivalled by many others; but none could vie with him in planning a campaign, providing against disasters, or improving victory."

Whilst the Jacobite forces lay encamped near Carlisle, certain differences of opinion arose in the Council. There were some who had even thought that it would be desirable, before investing Carlisle, to return to Scotland to collect a greater force. Lord George Murray, seconded by the Duke of Perth, had opposed this cautious proposal; and recommended that part of the army should stay at Brampton, and the rest go to blockade Carlisle. The Duke of Perth had seconded this scheme, and it had accordingly been decided that Lord George should command the blockade, whilst the Duke conducted the battery. The result has been seen; and the Prince was now master of Carlisle.