Redcastle, Lunan Bay, 309
Reginald's Tower, 347, 348

Remni, 297

Renfrew, 313

Retford, 55

Rhaidr Gwy, 301

Rhé Island, motte on, 350
Rhuddlan, 257, 259
Rhyd y Gors, 275, 284
Rhys ap Griffith, 275, 287

Riccarton, 319

Richard Sans Peur, 76

Richard I., 370-372
Richard's Castle, 192
Richmond, 193

Robert Curthose, 110
Robert de Monte, 360

Robert, Earl of Gloucester, 110, 295

Robert Fitz Hamon, 277

Robert of Rhuddlan, 257

Roberton, 314

Rochester, 25, 49, 195

Rockingham, 201

Roger the Poitevin, 129, 183, 184

Rokerel, 345

Rollo, 76

Roscrea, 345
Rosemarkie, 322

Ross, 318

Rouen, 77

Runcorn, 38

Ruthin, 269

Ruthven, 311

SANQUHAR, 318

Sarn Helen, 283
Saumur Castle, 75

Saxon fortifications, Chapters II., III.,

29

Saxon royal seats, 151 n. 2, 235
Scergeat, 33

407

Sepulchral hillocks, 9; in Ireland, 327

Shaftesbury, 15

Shell keep, 99
Sheppey Isle, 54
Shoebury, 51
Shrewsbury, 207
Siege castles, 85
Siegfried the Dane, 75
Siward, Earl, 22
Skipsea, 209
Skreen, 345

Slane, 345

Somerville family, 318
Somner, antiquary, 117
Soulis family, 318

Stafford, 34, 211
Stamford, 44, 216
Stanton, 217