Rare Seven Years War Battle Plan, showing the siege of Minorca in June 1756 by the Duke of Richelieu, from Heiden's Americanische urquelle derer innerlichen kriege des bedrängten Teutschlands. . .
A French force under the command of the Duke de Richelieu landed on the island and besieged the British garrison, forcing them to surrender after a lengthy siege. A British relief force under Admiral John Byng sailed with the purpose of saving the island, but after the naval Battle of Minorca Byng withdrew to Gibraltar, and the resistance of the garrison finally collapsed. Byng was later blamed for the loss of Minorca, and executed by firing squad.
The garrison's resistance had been considered lengthy and honourable enough for them to be allowed to march out carrying their arms and be shipped back home to Britain, a common convention at the time. Blakeney was absolved of any blame for the loss of the island, and was later awarded an Irish peerage in recognition of his defence of Fort St Phillip.
The positions of the two armies are shown, along with fortifications, batteries, artillery magazines and other details.