Certain |
Possible |
Questionable Doubtful |
Rejected |
|
Confidence is a statement of the site as a medieval fortification or palace |
| Name | Alternative Name(s) | County | Remains |
| Beaumaris Castle | Anglesey | Major | |
| Caer Gybi, Holyhead | Treffynnon | Anglesey | Major |
| Aberllynfi Castle | Great House; Abberlewin; Abrelenuith; Aberllyfni | Brecknockshire | Earthworks |
| Aberyscir Motte | Brecknockshire | Masonry foundations | |
| Alisby Castle, Crickhowell | Crucywel; Crug Hywel | Brecknockshire | Masonry ruins/remnants |
| Brecon Castle | Aberhonddu; Aberhodeny; Brecknock | Brecknockshire | Major |
| Bronllys Castle | Brunless; Brynllys | Brecknockshire | Major |
| Builth Wells Castle | Buellt; Llanfair-ym-Muallt | Brecknockshire | Masonry ruins/remnants | Cae Burdydd Castle, Vaynor | Faenor; Vaenor | Brecknockshire | Earthworks |
| Caer Beris Motte | Llangantan; Llanganten | Brecknockshire | Earthworks |
| Castell Blaenllynfi | Blaen Llyfni; Blaen Lleveny; Blaenllyfni | Brecknockshire | Masonry foundations |
| Castell Coch, Ystradfellte | Stratmelthin | Brecknockshire | Masonry foundations |
| Castell Dinas | Bwlch y Ddinas; Castell Ddinas; Bwlch y Dinas; Waynards Castle | Brecknockshire | Masonry foundations |
| Castell Du, Sennybridge | Castell Ddu; Castell Rhyd y Briw; Black Castle | Brecknockshire | Masonry ruins/remnants | Castell Einion Sais | Penpont | Brecknockshire | Nothing visible | Cefn Barn Ringwork, Trefeca Fawr | Trefecca Fawr; Trefeca-fawr; Cefn Bank; Weynards Castle; Waynards castle; Castellum Waynardi | Brecknockshire | Masonry foundations |
| Crickadarn Ringwork | Crucadarn; Castle Field | Brecknockshire | Earthworks |
| Cwm Camlais Castle | Camlais; Bleancamlais; Maescar; Defynoch; Defynock; Dyfynoch; 'new castle beyond Brecon' | Brecknockshire | Masonry foundations |
| Hay Castle | Hay-on-Wye Castle; Gelli; Tregelli; castello de haia; La Haie Taillee | Brecknockshire | Masonry ruins/remnants |
| Llanddew Palace | Brecknockshire | Masonry foundations | |
| Maes Celyn Motte, Crickhowell | Maescelyn Castle | Brecknockshire | Earthworks |
| Pencelli Castle | Penkelly; Pengelli; Pencelly | Brecknockshire | Masonry foundations |
| Tretower Castle | Stratdewy; Ystrad Yw; Stratewy; Straddewy | Brecknockshire | Major |
| Twmpan Motte, Llangors | Tymaur Motte; Llangasty Tal y Llyn; Llangasty Talyllyn Twmpan | Brecknockshire | Earthworks |
| Caernarfon Castle | Caernarvon; Carnarvon | Caernarfonshire | Major |
| Carn Fadryn | Garn Fadryn; Carn Fadrun; Madryn; Garn Fadrun | Caernarfonshire | Masonry ruins/remnants |
| Conwy Castle | Conway; Aberconwy | Caernarfonshire | Major |
| Criccieth Castle | Cricieth | Caernarfonshire | Major |
| Degannwy Castle | Castle of Gannoc; Gannock; Dagaunoth; Deganwy | Caernarfonshire | Masonry foundations |
| Dinas Emrys Castle | Caernarfonshire | Masonry foundations | |
| Dolbadarn Castle | Caernarfonshire | Major | |
| Dolwyddelan Castle | Caernarfonshire | Major | Pen y Castell, Garreg Olau | Caer Oleu | Caernarfonshire | Masonry foundations |
| Tomen Castell, Old Dolwyddelan | Caernarfonshire | Earthworks | |
| Aberystwyth Castle | Llanbadarn Fawr; Lampadervaur | Cardiganshire | Major |
| Cardigan Castle | Aberteifi | Cardiganshire | Masonry ruins/remnants | Castell Gwynionydd, Llandysul | Coedfon | Cardiganshire | Earthworks |
| Castell Trefilan | Trifilan | Cardiganshire | Earthworks |
| Tan y Castell | Aberrheidol; Rhyd y Felin; Llanychaiarn; Tyn y Castell; Tan y Bwlch; Old Aberystwyth | Cardiganshire | Earthworks |
| Ystrad Meurig Castle | Henblas; Meyric | Cardiganshire | Masonry foundations |
| Carmarthen Castle | Caermarthen; Caerfyrddin; Rhyd y Gors; Rhyd Cors | Carmarthenshire | Masonry ruins/remnants |
| Carreg Cennen Castle | Caer Cynan | Carmarthenshire | Major |
| Castell Meurig, Llangadog | Castell Meiris; Castell Pridd; Lychewein | Carmarthenshire | Earthworks |
| Dinefwr Castle | Dynevor; Gueithtinevur; Old Dynefwr; Dinevor | Carmarthenshire | Major |
| Dryslwyn Castle | Drusselan; Deresloyn; Dyryslwyn; Drysllwyn | Carmarthenshire | Masonry ruins/remnants |
| Kidwelly Castle | Cydweli | Carmarthenshire | Major |
| Laugharne Castle | Abercorran; Abercorram; Talacharn; Talcharn | Carmarthenshire | Major |
| Llandovery Castle | Canterbohhan; Cantref Bychan; Llanymddyfri; Llanymdyfri | Carmarthenshire | Masonry ruins/remnants |
| Llansteffan Castle | Llanstephan; St Stephen | Carmarthenshire | Major |
| Newcastle Emlyn Castle | Castel Nowid | Carmarthenshire | Masonry ruins/remnants |
| Pen y Cnap, Llanegwad | Carmarthenshire | Earthworks | |
| St Clears Castle | Banc y Beili; Ystrad Cyngen; Rhyd Y Gors | Carmarthenshire | Earthworks |
| Tomenseba, Llangeler | Domen Seba, Bwlch y Domen; y Domen Fawr; Tomen Soba; Penboyr; y Tomen Fawr | Carmarthenshire | Earthworks |
| Chirk Castle | Crogen; Ceiriog | Denbighshire | Major |
| Denbigh Castle | Dinbech | Denbighshire | Major | Denbigh Old Castle, Crown Hotel Mount | Dinebech; Dinbech; Timbei | Denbighshire | Nothing visible |
| Dinas Bran Castle | Crow | Denbighshire | Masonry ruins/remnants |
| Foel Las Motte, Pentrefoelas | Foel; Voelas; Llanfair Rhyd; Hen Foelas; Y Foelas | Denbighshire | Earthworks |
| Holt Castle | Chastellion; Castrum Leonis; Castle Lions | Denbighshire | Masonry ruins/remnants |
| Ruthin Castle | Castell Rhuthun; Castell Coch yn Gwern-for | Denbighshire | Masonry ruins/remnants |
| Caergwrle Castle, Hope | Queen's Hope | Flintshire | Masonry ruins/remnants |
| Dyserth Castle | Maelan; Caer Vaelan; Dincolin; Castle of the Rock; De Rupe; Caerfaelan; Carregfaelan | Flintshire | Masonry foundations |
| Ewloe Castle | Youley; Yollo; Eulo; Egloe; Eggelawe | Flintshire | Major |
| Flint Castle | Fflint | Flintshire | Major | Graig Fawr, Dyserth | Flintshire | Uncertain |
| Hawarden Castle | Penharddlech; Penarlag; Hawurd; Harden | Flintshire | Major |
| Hen Blas | Basingwerk; Dinas Bassing; Coleshill Fawr; Coleshill Castle | Flintshire | Earthworks |
| Mold; The Bailey Hill | Montalt; Mohaut; Monhalt; Mouhaut; Montalto; Gwyddgrug; Guiddgrug; Yr Wyddgrug; Wydrug; Wyrebruch | Flintshire | Earthworks |
| Overton Castle | Auretone; Averetone | Flintshire | Nothing visible |
| Prestatyn Castle | Flintshire | Earthworks | |
| Rhuddlan Castle | Rothelan; Ruthlan; Rughlan | Flintshire | Major |
| Twthill, Old Rhuddlan Castle | Toothill; Tut Hill; Bonc Hill; Roelent; Roeland | Flintshire | Earthworks |
| Aberafan Castle | Aber Afan; Aberavon; Beili y Castell; Bailey Castle; Baily'r castell | Glamorgan | Nothing visible |
| Alltygawrddu | Allt-Y-Gawrddu; St Cawrdaf's Monastry | Glamorgan | Masonry ruins/remnants | Bauzans Castle | Breigan Castle; Brigam; Brigan | Glamorgan | Uncertain |
| Brigam Farm | Breigam | Glamorgan | Nothing visible | Caer Dynnaf, Llygod Old Castle | Old Llanbeddian; Llanblethian Castle; Llanblethian Hill; St Quintin's | Glamorgan | Earthworks |
| Caerphilly Castle | Caerfilly; Caerffili; Castell Caerfilli-Crynodeb | Glamorgan | Major |
| Cardiff Castle | Caerdydd; Caerdiff; Kidis; Kerdif | Glamorgan | Major |
| Castell Coch | Rubeum Castrum | Glamorgan | Masonry ruins/remnants |
| Castell Tal y Fan | Talavan; Tallaunt; Talyfan Castle | Glamorgan | Masonry foundations | Castleton, St Athan | Glamorgan | Masonry ruins/remnants |
| Coity Castle | Coyty; Coety | Glamorgan | Major |
| Crege Castle | Craige; Creigiau | Glamorgan | Nothing visible | Cwm Clais, Castell Bolan | Baglan; Cwm Glais | Glamorgan | Earthworks |
| Dinas Powys Castle | Dinas Powis | Glamorgan | Masonry ruins/remnants |
| Fonmon Castle | Glamorgan | Masonry ruins/remnants | |
| Gelli Garn Castle | Glamorgan | Uncertain | |
| Kenfig Castle | Kengfig; Kinefeage | Glamorgan | Masonry foundations | Llandaff Archdeacons Castle | Glamorgan | Cropmarks/slight earthworks |
| Llandaff Bishops Palace | Glamorgan | Major | Llanddewi Castle, Port Eynon | Glamorgan | Nothing visible |
| Llangennith Castle, Barraston | Glamorgan | Uncertain | |
| Llangynwyd Castle | Tir yr Iarll; Castell Coch; Llangwynyd; Llangennydd; Llangeneu | Glamorgan | Masonry foundations |
| Llanquian Castle | Glamorgan | Masonry foundations | |
| Llantrisant Castle | Glamorgan | Masonry ruins/remnants | |
| Loughor Castle | Aberllwchwr; Casllwchwr | Glamorgan | Masonry ruins/remnants |
| Morgraig Castle | Castell Mor Graig | Glamorgan | Masonry foundations |
| Morlais Castle | Castell Morlais | Glamorgan | Masonry foundations |
| Moulton Castle | Glamorgan | Nothing visible | |
| Neath Castle | Castell-nedd | Glamorgan | Masonry ruins/remnants |
| Newcastle Bridgend Castle | Glamorgan | Major | |
| Nicholaston Castle | Glamorgan | Nothing visible | |
| Ogmore Castle | Castle of William of London; William de Londres | Glamorgan | Masonry ruins/remnants | Oxwich Tower | Oxwick | Glamorgan | Masonry footings |
| Oystermouth Castle | Ystum Llwynarth; Ostrelaf | Glamorgan | Major |
| Penllyn Castle | Penlline; Penllin | Glamorgan | Masonry ruins/remnants |
| Penmark Castle | Penmarc | Glamorgan | Masonry ruins/remnants |
| Pennard Castle | Penard; Penarth | Glamorgan | Masonry ruins/remnants |
| Penrice Castle | Glamorgan | Masonry ruins/remnants | |
| Peterston Castle | Glamorgan | Masonry ruins/remnants | |
| Plas Baglan | Castell y wiryones | Glamorgan | Masonry foundations | Port Eynon Castle | Glamorgan | Nothing visible |
| Porthkerry Castle | Glamorgan | Nothing visible | |
| Ruperra Castle | Rhiwperra Castle | Glamorgan | Major |
| Silverwood Castle, Oystermouth | Glamorgan | Uncertain | |
| St Donats Castle | Glamorgan | Masonry ruins/remnants | |
| St Fagans Castle | Glamorgan | Masonry ruins/remnants | St Georges Castle | Glamorgan | Masonry foundations |
| St Quentins Castle, Llanblethian | St Quintins; Caer Dynnaf; Cowbridge | Glamorgan | Major |
| Stormy Castle, Barraston | Glamorgan | Masonry footings | |
| Sully Castle | Glamorgan | Nothing visible | |
| Swansea Castle | New Castle; Abertawe; Seinhenydd; Gower; Goher; Sueineshea; Suenesel | Glamorgan | Masonry ruins/remnants |
| Treoda, Whitchurch | Tre Oda; Album Monasterium; Blank Mouster; Kibor; Castellum Kibur | Glamorgan | Cropmarks/slight earthworks |
| Wallston Castle | Glamorgan | Nothing visible | Wenvoe Castle | Glamorgan | Nothing visible |
| West Orchard Manor House | Glamorgan | Masonry footings | Wrinstone Castle | Grenestone | Glamorgan | Nothing visible |
| Castell Carndochan, Dolhendre | Castell Carn Dochan | Merioneth | Masonry foundations |
| Castell Gwain Goch, Penrhyndeudraeth | Deudraeth; Deudrait; Castell Aber Iâ; Portmeirion | Merioneth | Nothing visible |
| Castell y Bere | Caerberllan; 'a castle in Merionydd or Ardudwy' | Merioneth | Masonry ruins/remnants |
| Harlech Castle | Arlech | Merioneth | Major |
| Abergavenny Castle | Y Fenni; Bergevenn; Gevenu | Monmouthshire | Major |
| Caerleon Castle | Caerllion | Monmouthshire | Masonry ruins/remnants |
| Caldicot Castle | Caldecot; Conscuit | Monmouthshire | Major |
| Cas Troggy Castle | Taroggy; Torrogy; Striguil; Struggle | Monmouthshire | Uncertain |
| Castell Glas | Greenfield; Green Castle; Maes Glas; Maesglas Castle | Monmouthshire | Earthworks |
| Castell Meredydd | Machen | Monmouthshire | Masonry foundations |
| Castell Taliorum, Llanhilleth | Castell Taliurum; Llanhithel; Castell Hithell | Monmouthshire | Masonry foundations |
| Chepstow Castle | Strigoil; Striguil Estrighoel; Estrighoiel | Monmouthshire | Major |
| Dingestow Castle | Landinegath; Llandingat | Monmouthshire | Earthworks |
| Dinham Castle | Cestilldinan | Monmouthshire | Masonry ruins/remnants |
| Grosmont Castle | Grismond; Grossemont | Monmouthshire | Major |
| Langstone Court Motte | Monmouthshire | Earthworks | |
| Llanfair Discoed Castle | Llanvair Discoed | Monmouthshire | Masonry ruins/remnants |
| Llangibby Castle | Castell Tregrug; Tregreg; Trigruck | Monmouthshire | Masonry ruins/remnants |
| Llangibby Motte | The Bowling Green; Llangybi; Tregrug | Monmouthshire | Earthworks | Llanvaches Castle | Llanfaches | Monmouthshire | Cropmarks/slight earthworks |
| Monmouth Castle | Mingui; Mori | Monmouthshire | Masonry ruins/remnants | Newport Castle, Gwent | Casnewydd; Novus Burgus | Monmouthshire | Masonry ruins/remnants |
| Pencoed Castle | Pencoyd | Monmouthshire | Masonry ruins/remnants |
| Penhow Castle | Monmouthshire | Major | |
| Raglan Castle | Ragland; Yellow Tower of Gwent | Monmouthshire | Major | Rogerstone Castle | Tribginlion | Monmouthshire | Cropmarks/slight earthworks |
| Rumney Castle | Rhymney; Cae Castell; Reigni; Remni; Renni; Remmi | Monmouthshire | Earthworks |
| Skenfrith Castle | Ynys Gynwreid; Skinffrith | Monmouthshire | Major | Trostrey Castle | Monmouthshire | Earthworks |
| Usk Castle | Brynbuga; Brunebegy; Burenbegie; Huske; Uske; Oscae | Monmouthshire | Major |
| White Castle | Llantilio Castle; Blanc Castle | Monmouthshire | Major |
| Carreghofa Castle | Carreghova; Carreghove; Karrecouain; Karakawein; Karrecove; Caroclove; Carrecoel; Carrecoen; Karrechove; Carrec Huwa; Tanat Camp | Montgomeryshire | Earthworks | Castell Cyfeiliog, Darowen | Montgomeryshire | Nothing visible |
| Dolforwyn Castle | Castle at Abrunol; Abermule; Aber miwi; Bachyranneleu; Dolvoreyn | Montgomeryshire | Masonry ruins/remnants |
| Hyssington Castle | Castle Hill; Sneth; Snead; Sned; Snet | Montgomeryshire | Masonry foundations |
| Mathrafal Castle | Madrael; Matafall | Montgomeryshire | Masonry foundations |
| Montgomery Castle | Trefaldwyn; Baldwins Castle; Balwy | Montgomeryshire | Masonry ruins/remnants |
| Nantcribba Castle | The Gaer, Nant y Cribbau; Gwyddgrug; Wydrug; Wyrebruch; Nant Cribau | Montgomeryshire | Masonry foundations |
| Powis Castle | Powys; Castell Coch; Pool; Pola; Pole; Trallwng; Red Castle; Redde Castle; Castel Cough | Montgomeryshire | Major |
| Simons Castle, Churchstoke | Symons; Simonds; Symondes; Symonds; Sneth; Snead; Sned; Snet | Montgomeryshire | Masonry foundations | Amroth Castle | Earwere; Erwer; Eare Weare; Earweare | Pembrokeshire | Uncertain |
| Angle Rectory | Nangle; The Tower | Pembrokeshire | Major |
| Benton Castle | Llangwm | Pembrokeshire | Masonry ruins/remnants |
| Carew Castle | Pembrokeshire | Major | |
| Castell Crychydd | Herons Castle; Castell Cicydd | Pembrokeshire | Earthworks | Castell Dyffryn Mawr | Llanfair Nant Gwyn; Parc y Domen | Pembrokeshire | Earthworks |
| Castell Eglwyswrw | Tyddin; Eglwsywrw | Pembrokeshire | Earthworks |
| Castell Nanhyfer, Nevern | Cammais; Cammeis | Pembrokeshire | Earthworks |
| Castell Pen yr Allt | Llantood; Castell yr Allt | Pembrokeshire | Masonry foundations |
| Cilgerran Castle | Emlyn; Cenarth Bychan; Cenarth Fechan; Kilgarren | Pembrokeshire | Major |
| Haverfordwest Castle | Hwlffordd; Heleford | Pembrokeshire | Masonry ruins/remnants | Little Newcastle | Pembrokeshire | Nothing visible |
| Llanfyrnach Motte | Pembrokeshire | Earthworks | |
| Llawhaden Castle | Llanyhadein; Lauwadein; Lanwadein; Llanwhadein; Lawhaden | Pembrokeshire | Major | Long Furze, Amroth | Earwere; Castle Park; Erwer; Eare Weare; Amroath; Ambroth; Amboth | Pembrokeshire | Earthworks |
| Manorbier Castle | Meanor Pir; Manorbeer; Manober | Pembrokeshire | Major |
| Narberth Castle | Arbeth | Pembrokeshire | Masonry ruins/remnants |
| Newport Castle, Pembrokeshire | Trefdraeth | Pembrokeshire | Masonry ruins/remnants |
| Pembroke Castle | Penfro | Pembrokeshire | Major |
| Picton Castle | Pembrokeshire | Masonry ruins/remnants | |
| Roch Castle | Roche; Castle de Rupe | Pembrokeshire | Major |
| Tenby Castle | Dinbych-y-pysgod; Canneby | Pembrokeshire | Masonry ruins/remnants |
| Upton Castle | Pembrokeshire | Masonry ruins/remnants | |
| Walwyns Castle | Castell Gwalchmai; Castle Gawayn | Pembrokeshire | Earthworks |
| Wiston Castle | Gwys; Wiz; Wizos Castle; Castell Gwis | Pembrokeshire | Masonry ruins/remnants | Y Gaer, Manor Pound, Maenclochog | Pembrokeshire | Nothing visible |
| Aberedw Castle | castle in Elvayl Huchmenyt | Radnorshire | Masonry ruins/remnants |
| Aberedw Motte | Hen Castell; Pen Garreg Wood | Radnorshire | Earthworks | Barland Motte | Radnorshire | Earthworks |
| Bleddfa Castle | Bledewach; Bledvach; Bledeach | Radnorshire | Masonry foundations |
| Bogs Mount Castle, Burfa | The Bogs | Radnorshire | Masonry foundations |
| Boughrood Motte | Radnorshire | Earthworks | Bryn Llys, Glascwm | Radnorshire | Nothing visible |
| Bryn y Castell, Knighton | Bryn Castell; Cnicteton; Cnichton; Trefylco | Radnorshire | Earthworks |
| Castell Crugerydd | Crug Eryr; Cruker; Llanfihancel Nant Melan; castrum Crukeri | Radnorshire | Earthworks |
| Castell Tinboeth, Llananno | Castelltinboeth; Tynbot; Tinbech; Timbei, Timpath; Timbod; Tynboeth; Tyn y Bwlch; Tyn yn y Bwlch; Ty yn yr Bwlch; Tilloed; Dinbaud; Dunawd; Dyneneboth; Dwybod; Dynelegh; Dymbaud | Radnorshire | Masonry foundations |
| Castle Kinsey, Court Evan Gwynne | Cwrt Gwynne; Clyro 2; Court Evan Glynne | Radnorshire | Earthworks |
| Castle Nimble, Old Radnor | Knapp; Maes Hyfaidd; Maes Hyvaidd | Radnorshire | Earthworks |
| Cefnllys Castle(s) | Keventleres; Kenflyc; Kenflic; Kevenles; Castell Glyn Ieithon; Castle Bank; Maelienydd | Radnorshire | Masonry foundations |
| Clyro Castle | La Royl | Radnorshire | Earthworks |
| Colwyn Castle | Mauds Castle; Mawds; Colunwy; Clun | Radnorshire | Earthworks | Dunns Lane Motte, Evenjobb | Radnorshire | Earthworks | Evancoyd Mound | Evenjobb 4; Evenjobb House; Newcastle | Radnorshire | Cropmarks/slight earthworks | Evanjobb Motte | Radnorshire | Cropmarks/slight earthworks |
| Hundred House; The Mount | Brynllwyd Mount; Glan Edw | Radnorshire | Masonry foundations |
| Knucklas Castle | Cnwclas; Conoclas; Knokelace | Radnorshire | Earthworks |
| Llandelio Graben Motte | Llanbedr Motte; Llanddewi Mound | Radnorshire | Earthworks |
| New Radnor Castle | Maes Hyfaidd; Maes Hyvaidd | Radnorshire | Masonry foundations |
| Painscastle | Pain's Castle; Payn's Castle; Castle Paine; Mauds Castle; Castrum Matildis; Elfael; Elvael; Castle Matilda; Garde Doloureuse | Radnorshire | Earthworks |
| Rhayader Castle | Tower Mount; Rhaedr Gwy; Rhaidr Gwy; Rhys Castle | Radnorshire | Earthworks |
| Womaston Castle | Radnorshire | Earthworks | |
| Woodcastle Castle, Newbridge on Wye | Radnorshire | Uncertain |