Stanhope, with his German colleague Staremburg, after several weeks of skilful but desultory manœuvres, obliged the French army to retreat from Tortosa, to which place the enemy had advanced. In August of the same year, 1707, Admiral Leake with the British fleet took Cagliari and secured the island of Sardinia for King Charles. But the most important enterprise was the capture of Minorca with its excellent harbour.
The Duke of Marlborough wrote to General Stanhope saying: ‘I am so entirely convinced that nothing can be done effectually without the fleet, that I conjure you, if possible, to take Port Mahon.’ Lord Godolphin sent out instructions to the same effect, which reached Stanhope when he was encamped at Cervera with Marshal Staremburg, at the close of the campaign against the French.
Stanhope immediately set out for Barcelona in pursuance of his instructions, but few men could be spared for the enterprise. Fortunately, Charles was fully alive to its great importance. Admiral Sir John Leake was still off Sardinia with the bulk of the fleet. There were, however, six men-of-war at Barcelona; but some of the captains hesitated to take any responsibility. The two who supported the General were his brother Philip of the Milford, and Trevanion of the York.
Stanhope forced their hands by actually embarking in some transports the troops he had been able to collect, and announcing his intention of proceeding at once to Majorca, there to await reinforcements. This made all the captains resolve to accompany him. One of the ships (the Milford) was commanded by the General’s brother, Captain Philip Stanhope, and the two brothers sailed together. The force consisted of 1,200 British troops, including marines, 600 Portuguese, and the rest Spanish. The General wrote to Sir John Leake, who had just reduced Sardinia to obedience to Charles, sending a copy of the letter from Lord Godolphin, and entreating him to co-operate.
Sir John Leake was about to return with the Beet to England for the winter, leaving a squadron to guard the Portuguese coast. He, however, left Pula, near Cagliari, with the fleet on August 18, in compliance with General Stanhope’s request, and arrived off Port Mahon on the 25th. He cruised off the island until September 14, when Stanhope arrived on board the Milford, the transports following on October 3.
Stanhope’s plan was to land at once and lay siege to the castle of San Felipe. Measures were accordingly arranged with the Admiral, who lent all the marines and guns that could be spared. There were forty-two guns and thirteen mortars. A spot was selected about two miles from the castle to the south-west, and the troops were landed. All the inhabitants received them joyfully, declaring for King Charles; and the magistrates of Mahon came and delivered up the keys of their city. On the 7th the Dunkirk, Centurion, and York were anchored near the south-east point of the island, to cover the landing of the heavy guns. This was a service of great difficulty, for the only place for landing them was in a creek within half gunshot of the enemy’s batteries. Nevertheless it was attempted that very evening, and effected with little loss. The country was found to be rocky and without roads, and the beasts of burden that could be obtained were so few that it was twelve days before the guns could be got into position ready to commence the attack.
On the 8th the fleet, consisting of fifteen sail of the line, under the command of Sir John Leake, sailed for England. The Admiral had lent the General as many marines as could possibly be spared, and supplied him with ammunition and some provisions. A squadron of seventeen sail was left off Port Mahon, under the command of Sir Edward Whitaker, the hero of Gibraltar, to assist in the reduction of the castle of San Felipe.
Two ships, the Dunkirk (Captain Butler) and Centurion (Captain Fairborn), were detached to take possession of the castle and harbour of Fornelle, on the north coast of the island. The Dunkirk arrived two hours before the Centurion, and opened a heavy fire, which was returned with some effect; but when the Centurion also hove in sight, the garrison surrendered as prisoners of war. All the transports and bomb-vessels were then sent to Fornelle creek, having previously had no secure place to ride in.
On the 28th General Stanhope opened a battery of nine guns on two towers flanking an outer line, which the garrison of San Felipe had lately thrown up, beating them down and making some breaches in the connecting walls. This was not difficult, as the works had been hastily run up with loose stones. Brigadier Lane was stationed on the right with two battalions. Captain Philip Stanhope commanded the marines. Some of Wade’s men entered a breach in the wall without orders, and as soon as he saw their advance he followed with all his men. Philip Stanhope led on his marines, and there was a general advance, the garrison, after a short resistance, abandoning all the outworks and retreating into the castle. Next morning the enemy commenced a parley, which was followed by their capitulation in the afternoon. They could have held out for a long time. A hundred pieces of ordnance were found in the castle, three thousand barrels of powder, and all things necessary for a long defence. The victory was dearly bought with the death of Captain Philip Stanhope, who fell mortally wounded. He was struck by a ball on the forehead as he was held up by two sailors to look over a wall seven feet high. He was interred in one of the vaults of the castle. The General wrote: ‘The conquest has cost me very dear, but since Philip died in doing service to Her Majesty and his country, I shall think his life well bestowed, as I should my own.’
Ciudadela at once surrendered, and its garrison of a hundred men became prisoners of war. There was no resistance in any other part of the island. Stanhope wrote: ‘A great part of our success in reducing this island is owing to the zeal and affection the people have for us, which is beyond expression.’ Port Mahon was garrisoned by British marines, and the fortifications were strengthened by new works at a cost of about 60,000l. It was General Stanhope’s idea that Minorca should be held as a sort of mortgage for the large sums advanced to King Charles.