Constantinople, fortifications of, 112 Contour forts, 14 Conway, town wall of, 120 Castle, 118 description of, 120 Corbelling, mania for, 180 Corfe Castle, 131 Buttavant Tower, 140 description of, 137 Keep of, 139 "slighting" of, 140 Coucy Castle, 102, 104, 105, 181 Counterpoise engines, 193 Counterpoises of trebuchets, 194 _Coup-de-main_ attack, 189 Craigmillar Castle, 179 Crenellated walls, 41 Crévecoeur family, 143 Criccieth Castle, description of, 118 Cromlechs, 8 Cromwell, Ralph, Lord, 168 Crowstep gables, 181 Curtain walls, 67 Cutts, Lord, 75 Cylindrical Keep, 101 Dalyngrugge, Sir Edward, 157 Danish burhs, 43 Dauphin, 98 Definition of a castle, 1 "Devil of Belesme," 87 Differentiation of earthworks, 3 Dilke family, 162 Dinas, 9 Dirleton Castle, 176 Dog-tooth ornament, 92 Dolebury, 14 Donjon, 102, 181 Dorchester, Oxon, 10 Douglas family, 181 Doune Castle, 186 Dover Castle, 49 description of, 80, 92 the Keep, 82 Dragons, 152 Drum Castle, 178, 182 Dryslwyn Castle, 198 Dudley Castle, Fitz-Ansculf, William, 56 Dumbarton Castle, 176 Dunnottar Castle, description of, 185 Keep of, 185 Dunster Castle, Mohun, William de, 56 Durability of earthworks, 4 Durham Castle, 65 Dyke Hills, 10 Eagle Tower, Carnarvon Castle, 126 Earls Barton Castle, Northants, 52 Earthworks, auxiliary aids to, 18 British Isles, 2 classification of, 5 destruction of, 14 differentiation of, 3 durability of, 4 English, 3 with stockades, 18 Edinburgh Castle, 176, 183 Argyle Tower, 183 Edinburgh Castle, St. Margaret's Chapel, 184 Wellhouse Tower, 184 Edin's Hold, 175 "Edwardian" Castle, 118 Edward the Martyr, 138 Eleanor, wife of Humphrey of Gloucester, 144 Elfreton, Henry de, 121 Ely, 43 Engines, ancient, 191 English earthworks, 3 Escalade, 189 Espringale, 194, 196 Ethelfleda of the Mercians, 41, 42 Exburgh Manor-House, 168 Eye Castle, Malet, Robert de, 56 Fairfax, Sir Thomas, 164 Falarica, 86, 192 Fane, Ralph, 169 Fergeant, Alan, 99 Ferrers, Henry de, Tutbury Castle, 57 Feudal baronies, castles centre of, 56 Fiennes, Sir Roger, 165 Thomas, execution of, 166 First castellation, 2 Fishguard, 9 Fitz-Ansculf, William, Dudley Castle, 56 Fitz-John, Eustace, 68, 94 Fitz-Osborne, William, Earl of Hereford, 73 William, 142 Fitz-Scrob, Richard, 48 Flanking Towers, 67 Flint Castle, 122 Flying bridge, Motte and Bailey Castle, 50 Fonmon Castle, Glamorganshire, 93 Forebuildings, 78 Rochester Castle, 98 Fortified Hill-Tops, classification of, 13 strengthened, 5, 13 Gam, Sir David, 163 Gannock's Castle, near Tempsford, 44, 45 Gaveston, Piers, 74 Glendower, Owen, 119 Gloucester Castle, Keep of, 89 Humphrey, Duke of, 169