Falmouth ( ; ) is a town, civil parish and port on the River Fal on the south coast of Cornwall, England, United Kingdom. It has a total resident population of 21,797 (2011 census). Etymology The name Falmouth is of English origin, a reference to the town's situation on the mouth of the River Fal. The Cornish language name, or , is of identical meaning. It was at one time known as Pennycomequick, an Anglicisation of the Celtic Pen-y-cwm-cuic "head of the creek"; this is the same as Pennycomequick, a district in Plymouth. History Early history In 1540, Henry VIII built Pendennis Castle in Falmouth to defend Carrick Roads. The main town of the district was then at Penryn. Sir John Killigrew created the town of Falmouth shortly after 1613. In the late 16th century, under threat from the Spanish Armada, the defences at Pendennis were strengthened by the building of angled ramparts. During the Civil War, Pendennis Castle was the second to last fort to surrender to the Parliamentary Army. After the Civil War, Sir Peter Killigrew received royal patronage when he gave land for the building of the Church of King Charles the Martyr, dedicated to Charles I, "the Martyr". The seal of Falmouth was blazoned as "An eagle displayed with two heads and on each wing with a tower" (based on the arms of Killigrew). The arms of the borough of Falmouth were "Arg[ent]. a double-headed eagle displayed Sa[ble]. each wing charged with a tower Or. in base issuant from the water barry wavy a rock also Sa. thereon surmounting the tail of the eagle a staff also proper flying therefrom a pennant Gu[les]". Being the nearest large harbour to the entrance of the English Channel, two Royal Navy squadrons were permanently stationed here. In the 1790s one was under the command of Sir Edward Pellew (later Viscount Exmouth) and the other under the command of Sir John Borlase Warren. Each squadron consisted of five frigates, with either 32 or 44 guns. Pellew's flagship was HMS Indefatigable and Warren's HMS Révolutionnaire. At the time of the French Revolutionary Wars, battle ships and small vessels were continually arriving with war prizes taken from the French ships and prisoners of war. Near Penryn, at Tregellick and Roscrow, were two large camps for the French prisoners. The Falmouth Packet Service operated out of Falmouth for over 160 years between 1689