The kingdom was at this period alarmed with a threatened invasion from France. The court of St. Germain’s had sent over one colonel Hook with credentials to Scotland, to learn the situation, number, and ability of the pretender’s friends in that country. This minister, by his misconduct, produced a division among the Scottish Jacobites. Being a creature of the duke of Perth, he attached himself wholly to the duke of Athol, and those other zealous partisans who were bent upon receiving the pretender without conditions; and he neglected the duke of Hamilton, the earl-marshal, and other adherents of that house, who adopted the more moderate principles avowed by the earl of Middleton, At his return to France, he made such a favourable report of the disposition and power of the Scottish nation, that Louis resolved to equip an armament, and send over the pretender to that kingdom. His pretence was to establish that prince on the throne of his ancestors; but his real aim was to make a diversion from the Netherlands, and excite a revolt in Great Britain, which should hinder queen Anne from exerting herself against France on the continent. He began to make preparations for this expedition at Dunkirk, where a squadron was assembled under the command of the chevalier de Fourbin; and a body of land forces were embarked with monsieur de Gace, afterwards known by the appellation of the mareschal de Matignon. The pretender, who had assumed the name of the chevalier de St. George, was furnished with services of gold and silver plate, sumptuous tents, rich clothes for his life-guards, splendid liveries, and all sorts of necessaries even to profusion. Louis at parting presented him with a sword studded with valuable diamonds, and repeated what he had formerly said to this adventurer’s father: “He hoped he should never see him again.” The pope contributed to the expense of this expedition, and accommodated him with divers religious inscriptions, which were wrought upon his colours and standards. Queen Anne being informed of these preparations, and the design of the French monarch, communicated to the commons the advices which she had received from Holland and the Netherlands, touching the destination of the Dunkirk armament; both houses concurred in an address, assuring her they would assist her majesty with their lives and fortunes against the pretended prince of Wales, and all her other enemies. Then they passed a bill, enacting, that the oath of abjuration should be tendered to all persons, and such as refused to take it should be in the condition of convicted recusants. By another, they suspended the habeas-corpus act till October, with relation to persons apprehended by the government on suspicion of treasonable practices. The pretender and his adherents were proclaimed traitors and rebels; and a bill was passed, discharging the clans of Scotland from all vassalage to those chiefs who should take up arms against her majesty.
Transports were hired to bring over ten British battalions from Ostend; a large fleet being equipped with incredible diligence, sailed from Deal towards Dunkirk, under the conduct of sir John Leake, sir George Byng, and lord Dursley. The French imagined that Leake had sailed to Lisbon, and that Britain was unprovided of ships of war; so that they were amazed and confounded when this fleet appeared off Mardyke: a stop was immediately put to the embarkation of their troops; frequent expresses were despatched to Paris; the count de Fourbin represented to the French king the little probability of succeeding in this enterprise, and the danger that would attend the attempt; but he received positive orders to embark the forces, and set sail with the first favourable wind.
The British fleet being forced from their station by severe weather on the fourteenth day of March, the French squadron sailed on the seventeenth from the road of Dunkirk; but the wind shifting, it anchored in Newport-pits till the nineteenth in the evening, when they set sail again with a fair breeze, steering their course to Scotland. Sir George Byng having received advice of their departure, from an Ostend vessel sent out for that purpose by major-general Cadogan, gave chase to the enemy, after having detached a squadron, under admiral Baker, to convoy the troops that were embarked at Ostend for England. On the tenth day of March the queen went to the house of peers, where, in a speech to both houses, she told them that the French fleet had sailed; that sir George Byng was in pursuit of them; and that ten battalions of her troops were expected every day in England. This intimation was followed by two very warm addresses from the lords and commons, in which they repeated their assurances of standing by her against all her enemies. They exhorted her to persevere in supporting the common cause, notwithstanding this petty attempt to disturb her dominions; and levelled some severe insinuations against those who endeavoured to foment jealousies between her majesty and her most faithful servants. Addresses on the same occasion were sent up from different parts of the kingdom; so that the queen seemed to look with contempt upon the designs of the enemy. Several regiments of foot, with some squadrons of cavalry, began their march for Scotland; the earl of Leven, commander-in-chief of the forces in that country, and governor of the castle of Edinburgh, hastened thither to put that fortress in a posture of defence, and to make the proper dispositions to oppose the pretender at his landing. But the vigilance of sir George Byng rendered all these precautions unnecessary. He sailed directly to the Frith of Edinburgh, where he arrived almost as soon as the enemy, who immediately took the advantage of a land breeze, and bore away with all the sail they could carry. The English admiral gave chase; and the Salisbury, one of their ships, was boarded and taken. At night monsieur de Fourbin altered his course, so that next day they were out of reach of the English squadron. The pretender desired they would proceed to the northward, and land him at Inverness, and Fourbin seemed willing to gratify his request; but the wind changing, and blowing in their teeth with great violence, he represented the danger of attempting to prosecute the voyage; and, with the consent of the chevalier de St. George and his general, returned to Dunkirk, after having been tossed about a whole month in very tempestuous weather. In the meantime sir George Byng sailed up to Leith road, where he received the freedom of the city of Edinburgh in a golden box, as a testimony of gratitude for his having delivered them from the dreadful apprehensions under which they laboured.