Fort Charles, Salcombe

Fort Charles, also known as Salcombe Castle, famously served as the last Royalist stronghold in the country to surrender to Parliamentary forces, holding out under siege until May 7, 1646.

It is now a ruined 16th-century coastal artillery fort located on a rocky outcrop just off North Sands beach in Salcombe, Devon.
Construction of the castle began in 1544 by order of King Henry VIII during a French invasion scare to defend the mouth of the Kingsbridge Estuary and Salcombe Harbour. It was then re-occupied and strengthened in 1643 under Royalist commander Sir Edmund Fortescue and renamed Fort Charles.