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Certain |
Probable |
Questionable or Doubtful |
Rejected |
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Confidence is a statement of the site as a medieval fortification or palace | ||||
Name |
Alternative Name(s) |
Type |
Remains |
| Aberafan Castle | Aber Afan; Aberavon; Beili y Castell; Bailey Castle; Baily'r castell | Timber Castle, Masonry Castle | no visible |
| Aberafan Town Walls | Urban Defence | no visible | |
| Alltygawrddu | Allt-Y-Gawrddu; St Cawrdaf's Monastry | Masonry Castle | masonry ruins/remnants | Barons Court, Cogan Pill | Uncertain | uncertain |
| Barry Castle | Timber Castle, Masonry Castle, Fortified Manor House | masonry ruins/remnants | Bauzans Castle | Breigan Castle; Brigam; Brigan | Timber Castle, Masonry Castle | uncertain |
| Beauville Castle | Bove Hill; Bouville; Bovill | Fortified Manor House | masonry footings |
| Bedford Castle | Timber Castle | earthwork | |
| Berry Wood Earthwork | Timber Castle | no visible | |
| Biglis Old Court | Bugeleys; the courte of Vygles; Shepherd's Court | Fortified Manor House | no visible | Bishopston, Gower manor of Bishop of Llandaff | Palace | masonry ruins/remnants |
| Bishopton Church of St Teilo | Fortified Ecclesiastical site | major building | |
| Bishopton Old Castle, Barland | Old Castleton Bishopton; Old Castle Camp; Barland Castle; Bishopston | Timber Castle | earthwork |
| Bovehill Castle, Landimore | Cheriton; Landymore; Landimor | Fortified Manor House | masonry ruins/remnants |
| Boverton Place, Llantwit Major | Bertown | Fortified Manor House | no visible |
| Brigam Farm | Breigam | Timber Castle, Masonry Castle | no visible | Briton Ferry Motte | Hen Gastell | Timber Castle | earthwork |
| Brocastle | Llangan | Timber Castle | no visible |
| Brynwell Leckwith, Beganston | Berganston | Timber Castle | earthwork |
| Burry Hall, Port Eynon | Bury Hall; Berry Wood | Timber Castle | no visible | Cadoxton Court, Barry | Fortified Manor House | masonry footings | Cae Castell, Llechart | Rhyndwyclydach; Nant Llwydyn | Timber Castle | earthwork |
| Cae Garn Earthworks | Pant Glas Tower | Uncertain | uncertain | Caer Dynnaf, Llygod Old Castle | Old Llanbeddian; Llanblethian Castle; Llanblethian Hill; St Quintin's | Timber Castle, Masonry Castle, Fortified Manor House | earthwork |
| Caerau Castle | Kayre; Cayre | Timber Castle, Urban Defence | earthwork |
| Caerphilly Castle | Caerfilly; Caerffili; Castell Caerfilli-Crynodeb; Kerfily; Kaerfilly; Sengenneth | Masonry Castle, Palace | major building | Caerphilly Town Walls | Urban Defence | no visible |
| Candlestone Castle | Tregawntlo | Fortified Manor House | major building |
| Cardiff Castle | Caerdydd; Caerdiff; Caerdyf; Kidis; Kerdif; Caertoph | Timber Castle, Masonry Castle | major building |
| Cardiff Town Walls | Caerdydd; Kidis; Kerdif | Urban Defence | masonry ruins/remnants |
| Castell Coch | Rubeum Castrum; Rubeocastro | Timber Castle, Masonry Castle | masonry ruins/remnants |
| Castell Coch, Welsh St Donats | Castell y Marchog; Castell Sion Goodfellow; Knight's Castle | Fortified Manor House | uncertain |
| Castell Gwern | Uncertain | uncertain | |
| Castell Morlais, Porthcawl | Sker | Uncertain | no visible | Castell Nos, Aberdare | Castelle Nose | Timber Castle | earthwork |
| Castell Tal y Fan | Talavan; Tallaunt; Talevan; Thalevon; Talyfan Castle | Timber Castle, Masonry Castle | masonry footings |
| Castell y Mynach, Creigiau | Monk's Castle; Castelle Menach in Pentiraugh; Castellum Monachorum | Fortified Manor House | no visible |
| Castle, Gowerton | Uncertain | no visible | Castleton, St Athan | Masonry Castle | masonry ruins/remnants |
| Cefn Mably | Cefnmabli; Cefn Mabli | Uncertain | no visible |
| Cheriton Church of St Cadog | Fortified Ecclesiastical site | major building | Cil Ifor Top, Llanrhidian | Cil Ivor Camp | Timber Castle | earthwork |
| Coed y Cwm, St Nicholas | Bolston | Timber Castle | earthwork |
| Coity Castle | Coyty; Coety | Timber Castle, Masonry Castle | major building | Coity Castle Seigeworks | Coyty | Siege Work | earthwork |
| Cosmeston Castle | Coed y Cwm | Fortified Manor House | earthwork | Cottrell House | Uncertain | no visible | Cottrell Motte | Cottrell Park Motte | Timber Castle, Siege Work | earthwork |
| Counsel Tut, Cowbridge | Council Twt | Timber Castle | earthwork |
| Cowbridge Town Walls | Y Bont-faen | Urban Defence | major building |
| Craig Ruperra Motte | Castell Breiniog; Castell y ddraenen; Coed Craig Ruperra; Castell Breiniol; Remmi; Remni; Rubina | Timber Castle | earthwork |
| Craig Ty Isaf Camp | Timber Castle | earthwork | |
| Crawley Rocks Fort, Nicholaston | Timber Castle | earthwork | Crege Castle | Craige; Creigiau | Masonry Castle, Fortified Manor House | cropmark/slight earthwork | Culver Hole | Culvers Hole; Smugglers' Hole | Pele Tower | masonry ruins/remnants |
| Cwm Clais, Castell Bolan | Baglan; Cwm Glais | Timber Castle, Masonry Castle | earthwork |
| Cwrt y Vil Castle, Penarth | Canon Court | Fortified Manor House | masonry footings |
| Dinas Powys Castle | Dinas Powis; Dinaunt Poys | Masonry Castle | masonry ruins/remnants | Dinas Powys Ringwork | Cwm George Camp; Cwrt-yr-ala | Timber Castle | earthwork |
| Doghill, Dyffryn | Worleton; Dog Hill | Palace, Fortified Manor House | masonry footings | Dunraven Castle | Fortified Manor House | no visible |
| East Orchard Castle | Norchete Manor | Fortified Manor House | masonry ruins/remnants |
| Ewenny Priory | Ewenni; Wenny | Fortified Ecclesiastical site | major building |
| Felin Isaf Motte, Llantrisant | Timber Castle | earthwork | |
| Flemingston Court | Flemingston Castle | Fortified Manor House | major building |
| Fonmon Castle | Masonry Castle | masonry ruins/remnants | |
| Gadlys, Llanilid | Timber Castle | earthwork | |
| Garn Defended Homestead | Uncertain | no visible | |
| Gelli Garn Castle | Coed Breigam | Timber Castle, Masonry Castle | uncertain |
| Gelli Garn Ringwork | St Mary Hill; Hill House | Timber Castle | earthwork |
| Glyn Castle | Clun y Castell; Soflen | Uncertain | earthwork |
| Gnoll House | Uncertain | no visible | Granvilles Castle, Neath | Neath Motte; Castell-nedd; Cwrt Herbert | Timber Castle | no visible |
| Gwern y Domen | Domen Bedwas, Van Castle | Timber Castle | earthwork |
| Hen Gastell, Llanrhidian Higher | Hen Castell; Dan-y-lan Camp; Pen-clawdd | Timber Castle | uncertain |
| Hensol Castle | Uncertain | no visible | |
| Horgrove Enclosure | Timber Castle | uncertain | Howe Mill Enclosure | How Mill; St Mary's Castle | Timber Castle | earthwork |
| Hughs Castle, Llandeilo Talybont | Tal y Bont; Castell Du; Castle Hu; Banc y Rhyfel; Talybonet in Gower; Goher; Talband | Timber Castle | earthwork |
| Ilston Church of St Illtyd | Fortified Ecclesiastical site | major building | |
| Kenfig Castle | Kengfig; Kinefeage; Kenefeg | Timber Castle, Masonry Castle | masonry footings |
| Kenfig Town Defences | Kenefeg; Kenfeg | Urban Defence | earthwork |
| Kings Castle, Canton | Castell Breiniol | Fortified Manor House | no visible |
| Kittle Top, Penrice | Timber Castle | cropmark/slight earthwork | |
| Leason | Leyston | Timber Castle | earthwork |
| Liege Castle, Castell Moel | Leeeh; Leeds; Castra Legionis; Leehe; Lache; Leche; Lechcastle; Lachecastle | Fortified Manor House | earthwork |
| Llancaiach Fawr Manor House | Fortified Manor House | major building | Llandaff Archdeacons Castle | Masonry Castle, Fortified Manor House | cropmark/slight earthwork |
| Llandaff Bishops Palace | Masonry Castle, Palace | major building | Llanddewi Castle, Port Eynon | Masonry Castle, Palace | no visible |
| Llanddewi Church of St David | Fortified Ecclesiastical site | major building | |
| Llanddewi Enclosure, Port Eynon | Timber Castle | earthwork | |
| Llandough Castle, Llanfair | Tower House | masonry ruins/remnants | |
| Llandough juxta Penarth | Llandochau; Llan Doche Penarth | Uncertain | no visible | Llandow Castle | Timber Castle | cropmark/slight earthwork |
| Llangennith Castle, Barraston | Masonry Castle | uncertain | |
| Llangenydd Church of St Cenydd | Fortified Ecclesiastical site | major building | Llangewydd Castle, Laleston | Llangenydd | Timber Castle | no visible | Llangyfelach Church of St David and St Cyfelach | Fortified Ecclesiastical site | major building |
| Llangynwyd Castle | Tir yr Iarll; Tyriartlh; Tyryartlh; Castell Coch; Llangwynyd; Llangennydd; Llangeneu; Landguned | Timber Castle, Masonry Castle | masonry footings |
| Llanilid Castle | Timber Castle | earthwork | |
| Llanmadoc Church of St Madoc | Fortified Ecclesiastical site | major building | |
| Llanquian Castle | Timber Castle, Masonry Castle | masonry footings | |
| Llanrhidian Church of St Rhidian and St Illtyd | Fortified Ecclesiastical site | major building | |
| Llantrisant Castle | Landtrissen; Lantrissan | Timber Castle, Masonry Castle | masonry ruins/remnants |
| Llantrithyd Camp | Llantrithyd House; Llantrythyd Ringwork | Timber Castle | masonry footings |
| Llantrithyd Ringwork | Llantrythyd Ringwork; Llantrythyd Moat; Llantrithyd Castle; Llanthrithyd | Timber Castle | earthwork |
| Llantwit Major Bishops Palace | Llantwyt | Palace | earthwork |
| Llantwit Major Tower | Uncertain | earthwork | Llwdarth | Llwydarth | Uncertain | uncertain |
| Loughor Castle | Aberllwchwr; Casllwchwr; Lochor; Castell Llychwr | Timber Castle, Masonry Castle | masonry ruins/remnants | Loughor Town Defences | Logher; Llonghour | Urban Defence | no visible |
| Madocs Castle | Castell Madog; Garth | Fortified Manor House | masonry ruins/remnants |
| Maes Hywaid Motte, Welsh St Donats | Timber Castle | earthwork | Malefant Castle, Llanmaes | Malifant; Malefaunt; Malefunt; Llanfaes; Llanuais; Bedford | Tower House | masonry footings |
| Marcross Castle | Fortified Manor House | masonry ruins/remnants | |
| Marsh House, East Aberthaw | Uncertain | major building | Middlecross Ringwork, Llancarfan | Crosstown; Pancross | Timber Castle | cropmark/slight earthwork |
| Moel Garn, Llangeinwyr | Uncertain | earthwork | |
| Morganstown Motte | Tongwynlais; Ty nant motte | Timber Castle | earthwork |
| Morgraig Castle | Castell Mor Graig | Masonry Castle | masonry footings |
| Morlais Castle | Castell Morlais | Masonry Castle | masonry footings |
| Moulton Castle | Masonry Castle, Fortified Manor House | no visible | |
| Mound, Llansamlet | Mynydd Drumau | Timber Castle | earthwork |
| Mount Vernon Motte | Vernon House; Warren Hill | Timber Castle | earthwork |
| Mountyborough, Old Penrice Castle | Mounty Bank; Mounty Brough | Timber Castle | earthwork |
| Mynydd Y Fforest Earthwork | Timber Castle | earthwork | |
| Nash Mound | Timber Castle | earthwork | |
| Nash Point Old Castle | Nash Point Camp | Timber Castle | earthwork |
| Neath Castle | Castell-nedd; Neth | Timber Castle, Masonry Castle | masonry ruins/remnants | Neath Town Defences | Urban Defence | no visible |
| Newcastle Bridgend Castle | Castelle Newith, Penbont | Timber Castle, Masonry Castle | major building |
| Nicholaston Castle | Masonry Castle | no visible | North Cornelly; The Hall | Corneli | Fortified Manor House, Tower House, Pele Tower | masonry ruins/remnants | North Hill Tor, Cheriton | Nottle Tor Camp | Timber Castle | earthwork | Norton Camp, Oxwich | Timber Castle | earthwork |
| Ogmore Castle | Castle of William of London; William de Londres | Timber Castle, Masonry Castle | masonry ruins/remnants | Old Beaupre Castle | Bewpyr; Beawpire; Y Bewpur; Bewerpere | Fortified Manor House | major building |
| Old Castle upon Alun | Castle upon Alen | Uncertain | no visible |
| Old Cogan Hall Farm | Uncertain | uncertain | |
| Old Henllys Moat, Llanddewi | Fortified Manor House | no visible | |
| Oldcastle Bridgend | Nolton; Henecastelle, Penbont | Timber Castle | no visible |
| Oxwich Castle | Oxwick; Oxwnwich | Fortified Manor House | major building |
| Oxwich Church of St Illtyd | Fortified Ecclesiastical site | major building | |
| Oxwich Tower | Oxwick | Masonry Castle, Tower House | masonry footings |
| Oystermouth Castle | Ystum Llwynarth; Ostrelaf; Ostremew | Timber Castle, Masonry Castle | major building | Oystermouth Church of All Saints | Fortified Ecclesiastical site | major building |
| Park Mill, Ilston | Liston | Timber Castle | cropmark/slight earthwork |
| Pen y Castell, Cynnig | Kibor Castle; Castellum Kibur: Castelstude | Timber Castle | earthwork |
| Penller Castell | Penllyr; New Castle in Gower; Penlle'r Castell | Timber Castle, Masonry Castle | earthwork |
| Penllyn Castle | Penlline; Penllin | Masonry Castle | masonry ruins/remnants |
| Penmaen Burrows Ringwork | Castle Tower | Timber Castle | earthwork |
| Penmark Castle | Penmarc | Timber Castle, Masonry Castle | masonry ruins/remnants |
| Penmark Place | Penmarc | Fortified Manor House | masonry ruins/remnants |
| Penmark Village Defences | Urban Defence | cropmark/slight earthwork | |
| Pennard Castle | Penard; Penarth; Pen arth | Timber Castle, Masonry Castle | masonry ruins/remnants |
| Pennard Church of St Mary | Pennard Burrows Church | Fortified Ecclesiastical site | masonry footings |
| Penrice Castle | Penrees | Masonry Castle | masonry ruins/remnants |
| Penrice Church of St Andrew | Fortified Ecclesiastical site | major building | |
| Peterston Castle | Masonry Castle | masonry ruins/remnants | |
| Plas Baglan | Castell y wiryones | Masonry Castle | masonry footings | Port Eynon Castle | Porteynon' | Masonry Castle | no visible |
| Porthkerry Castle | Castle Rock | Masonry Castle | no visible |
| Reynoldston Camp | Reynoldstone | Timber Castle | earthwork |
| Rhoose Old Castle | Fortified Manor House | no visible | |
| Rhossili Church of St Mary the Virgin | Fortified Ecclesiastical site | masonry ruins/remnants | Rhuthyn | Uncertain | uncertain |
| Roath Dogfield | Roath Court; Roath Dogfilde | Fortified Manor House | no visible |
| Rulam | Uncertain | uncertain | |
| Ruperra Castle | Rhiwperra Castle; Ruppera | Masonry Castle | major building |
| Ruthin Castle, St Mary Hill | Uncertain | no visible | |
| Salt House, Port Eynon | Uncertain | masonry footings | |
| Scurlage Castle, Port Eynon | Llanddewi; Scurlagiscastel; Skorlocastell | Uncertain | no visible |
| Scurlage Castle, Trecastell | Scurla Castle; Trecastle; Treer; Scorlayges Kaestel | Fortified Manor House | earthwork |
| Silverwood Castle, Oystermouth | Masonry Castle | uncertain | Soldiers Grave, Bonvilston | Timber Castle | earthwork |
| St Donats Castle | St Donatt's; St Denwit's | Timber Castle, Masonry Castle | masonry ruins/remnants |
| St Fagans Castle | Castell Sain Ffagan | Timber Castle, Masonry Castle | masonry ruins/remnants | St Georges Castle | Masonry Castle | masonry footings |
| St Lythans Ringwork | Coednant Bran | Timber Castle | earthwork |
| St Quentins Castle, Llanblethian | St Quintins; Caer Dynnaf; Cowbridge | Masonry Castle | major building |
| Stormy Castle, Barraston | Uncertain | no visible | |
| Stormy Castle, Cheriton | Masonry Castle | masonry footings | Stormy Castle, Cynnig | Tythegston Higher; Sturmieston; villa sturmi | Timber Castle | earthwork |
| Stout Hall, Reynoldston | Stout Walls; Stouthall | Uncertain | no visible |
| Sully Castle | Timber Castle, Masonry Castle, Fortified Manor House | masonry ruins/remnants | |
| Swansea Castle | New Castle; Abertawe; Seinhenydd; Gower; Goher; Sueineshea; Suenesel; Senghenydd | Timber Castle, Masonry Castle, Palace | masonry ruins/remnants |
| Swansea Town Walls | Abertawe; Seinhenydd; Sueineshea; Suenesel; Swinesey; Sweyneseye; Swyneseye | Urban Defence | masonry footings |
| Swansea; The Mount | Timber Castle | no visible | |
| Sweldon | Uncertain | cropmark/slight earthwork | |
| Tomen y Clawdd, Llantwit Fardre | Llantwit Vaerdre; Coed y Twr; Monkey Tump | Timber Castle | earthwork |
| Tongwynlais alleged motte | Eglwysilan | Timber Castle | uncertain | Tregawnll | Uncertain | uncertain |
| Treoda, Whitchurch | Tre Oda; Album Monasterium; Blank Mouster; Kibor; Castellum Kibur | Timber Castle, Masonry Castle | cropmark/slight earthwork |
| Twmpath Motte, Rhiwbina | Caer Cynwrig | Timber Castle | earthwork |
| Twyn Castell, Gelligaer | Cadwallon | Timber Castle, Palace | earthwork |
| Twyn Llewelyn Mound A | Timber Castle | earthwork | |
| Twyn Llewelyn Mound B | Timber Castle | earthwork | Ty Du, Pendoylan | Timber Castle | earthwork | Tythegston Court | Tower House | masonry ruins/remnants |
| Vianshill, St Lythans Down | Timber Castle | earthwork | |
| Wallston Castle | Masonry Castle | no visible | Walterston Castle | Timber Castle, Urban Defence | earthwork | Wenvoe Castle | Masonry Castle, Fortified Manor House | no visible |
| Weobley Castle | Leyshanston; castrum de Webbeley | Fortified Manor House | major building | West Orchard Manor House | Masonry Castle, Fortified Manor House | masonry footings | Witley | Uncertain | uncertain | Wrinstone Castle | Grenestone | Masonry Castle | no visible |
| Y Gaer, St Nicholas | Cottrell Ringwork; Coed y Cwm | Timber Castle | earthwork |
| Ynysawdre Mound, St Brides Minor | Timber Castle | earthwork | Ynyscrug Castle, Trealaw | Rhondda; Ynys y Crug; Hangman's Hill; Gibbet Hill; Tonypandy | Timber Castle | cropmark/slight earthwork |
| Ysgubor Wen Motte | Timber Castle | earthwork | |
| Ystradowen Motte | Ystrdd Owen; Druids Grove | Timber Castle | earthwork |
