After the restoration of Charles II of England the obsolete fortifications on the east bank of the river were extended and improved, at the same time incorporating a garrison into the city which had sided with the Parliamentarians during the Civil War; the new fortress, built in the 1680s, named "The Citadel" was a moated triangular bastioned artillery fortification built in the south-west corner of Drypool; approximately 30 acres of land was taken by the new fortification.