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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) | County | Remains | Allt y gaer, Llangathen | Altigar | Carmarthenshire | uncertain | Barons Court, Cogan Pill | Glamorgan | uncertain | Bryneglwys 'Dinas' | Castell Furi; Fury | Denbighshire | no visible | Castell Aberlleiniog | Castell Llienawg; Aberllienawg; Castle in Anglesey; Castell Leiniog | Anglesey | earthwork | Castelldwyran | Castel Dauyran; Dyram | Carmarthenshire | no visible | Cottrell House | Glamorgan | no visible | Culver Hole | Culvers Hole; Smugglers' Hole | Glamorgan | masonry ruins/remnants | Dernio | Castle of Edernion; Edeyrnion; Dernant; Dermant | Merioneth | uncertain |
| Dinweilir | Dinweiler; Castle of Mabudrud | Uncertain | uncertain | Dinyetha | castrum vocatum Dynyeytha | Uncertain | uncertain | Ednyfeds Castle | Bryn Euryn; Plas Bryneuryn | Denbighshire | uncertain | Emlyn | Uncertain | uncertain | Glyn, Denbighshire | Denbighshire | uncertain | Goedmore | Coedmawr; Coedmor; Castell Cevel; Llangoedmor; Coit Maur | Cardiganshire | no visible | Guiddgrug | Gwyddrug; Yr Wydgruc; Wyrebruch; Weidgrut | Montgomeryshire | uncertain | Gwyddrug | Yr Wydgruc | Uncertain | uncertain | Hithoet Castle | Hychoet; Castell Coch; Is Coed | Radnorshire | uncertain | Lawrenny Castle | Pembrokeshire | no visible | Llanelli New Castle | Pen y Castell, Llanelly | Carmarthenshire | no visible | Llangynidr | Vro | Brecknockshire | no visible | Llanrhyadr | Cardiganshire | uncertain | Llwdarth | Llwydarth | Glamorgan | uncertain | Madua | Carmarthenshire | uncertain | Maelienydd | Radnorshire | no visible | Meirionydd | Merioneth | uncertain | Meirionydd, Ardudwy | Merioneth | uncertain | Peytivins Castle | Castle of the Poitevins; Castle of Poytins; Pytinglas Farm | Brecknockshire | no visible | Quay Street Tower House, Haverfordwest | Pembrokeshire | major building | Rhuthyn | Glamorgan | uncertain | Towre Kenvyn | Caer y Bont; Pen y Twr; Twr Cynfyn; Hendwr; Kenuyn; Kynvyn | Merioneth | no visible | Trefriw | Treurewe; Trevriw | Caernarfonshire | no visible | Tregawnll | Glamorgan | uncertain | Witley | Glamorgan | uncertain |
| Afon Lliw Mound, Llanuwchllyn | Merioneth | earthwork | |
| Bailey Placename, Painscastle | Radnorshire | no visible | |
| Barclodied y Gawres Camp, Llanwyddelan | Montgomeryshire | no visible | |
| Black Rock | Radnorshire | uncertain | |
| Blaenau 'Tower' | Brecknockshire | masonry ruins/remnants | |
| Bryn Castell, Llanasa | Flintshire | no visible | |
| Bwlch y Castell | Cardiganshire | uncertain | |
| Cae Castell Einion Fieldname, Llanfair Caereinion | Cae Castle Einion | Montgomeryshire | no visible |
| Cae Castell Placename, Llangollen | Denbighshire | no visible | |
| Cae Castell Placename, Tregynon | Montgomeryshire | no visible | |
| Cae Castell Ucha Issa and Pella Fieldname, Llangollen | Denbighshire | no visible | |
| Cae Cerrig Earthworks, Glascwm | Radnorshire | uncertain | |
| Cae Gaer Fieldname | Radnorshire | no visible | |
| Cae Garn Earthworks | Pant Glas Tower | Glamorgan | uncertain |
| Cae Pengaer Placename, Llandeilo'r Fan | Brecknockshire | no visible | |
| Cae Tump Placename 1, Gladestry | Radnorshire | no visible | |
| Cae Tump Placename 2, Gladestry | Radnorshire | no visible | |
| Cae Whisken Fieldname, Overton | Whistan | Flintshire | no visible |
| Cae y Castle Fieldname, Ruabon | Denbighshire | no visible | |
| Caerau Placename and Earthwork Enclosure, Llandinam | Montgomeryshire | earthwork | |
| Castell Coch Placename, Llanbister | Castle Coch | Radnorshire | no visible |
| Castell Du Placename, Llangamarch | Brecknockshire | no visible | |
| Castell Greido Placename, Llangurig | Montgomeryshire | no visible | |
| Castell Gwern | Glamorgan | uncertain | |
| Castell Mabwinion | Castell Mabwynion; Castellum Mebwenniaun | Cardiganshire | earthwork |
| Castell Maelgwyn | Pembrokeshire | no visible | |
| Castell Manest Placename, Merthyr Cynog | Brecknockshire | no visible | |
| Castell Morlais, Porthcawl | Sker | Glamorgan | no visible |
| Castell Myn, Llangrannog | Cardiganshire | no visible | |
| Castell Placename, Halkyn | Flintshire | no visible | |
| Castell Placename, Llandinam | Castell y waun | Montgomeryshire | uncertain |
| Castell Placename, Llanfair Dyffryn Clwyd | Denbighshire | no visible | |
| Castell Placename, Llanfihangel | Montgomeryshire | no visible | |
| Castell Placename, Waen | Flintshire | no visible | |
| Castell Placename, Ysceifiog | Flintshire | no visible | |
| Castell Placenames, Llanwyddelan | Montgomeryshire | no visible | |
| Castell Porth Wen | Anglesey | no visible | |
| Castell Teirtut | Castell Tein Tut | Brecknockshire | no visible |
| Castell y Dail Placename, Llangurig | Montgomeryshire | no visible | |
| Castell y Gur Fieldname, Llay | Denbighshire | no visible | |
| Castell y Gwynt Placename | Montgomeryshire | uncertain | |
| Castell y Gwynt Placename, Mochdre | Montgomeryshire | no visible | |
| Castell y Waun Placename, Llanwyddelan | Montgomeryshire | no visible | |
| Castle near Penrhos Church | Monmouthshire | uncertain | |
| Castle Placename, Gladestry | Radnorshire | no visible | |
| Castle Placename, Painscastle | Radnorshire | no visible | |
| Castle Tump, Caerwent | Whitewall Brake | Monmouthshire | masonry footings |
| Castle Wood Placename, Abbey Cwmhir | Cymaron | Radnorshire | no visible |
| Castle, Gowerton | Glamorgan | no visible | |
| Cefn Gaer Placename, Llanfyllin | Montgomeryshire | no visible | |
| Cefn Mably | Cefnmabli; Cefn Mabli | Glamorgan | no visible |
| Chirk Castle Fieldname | Denbighshire | no visible | |
| Close Bank Enclosure, Llandinam | Cloisybank | Montgomeryshire | uncertain |
| Coed y Castell Placename | Brecknockshire | no visible | |
| Coitier Castell Fieldname, Trelawnyd | Newmarket | Flintshire | no visible |
| Craig Dinas Fach Placenames, Llanwrtyd Wells | Brecknockshire | no visible | |
| Craig y Castell Placename, Llangynog | Montgomeryshire | no visible | |
| Crombeir | Radnorshire | uncertain | |
| Crug y Byddar, Beguildy | Crug y Buddair, Crug y Buddar; Mount of Ambuscade | Radnorshire | no visible |
| Cwmargenau Enclosure | Carmarthenshire | cropmark/slight earthwork | |
| Din Gaer Placename, Llanwyddelan | Montgomeryshire | no visible | |
| Discoed Mound | Radnorshire | earthwork | |
| Dol Gaer Placename, Meifod | Montgomeryshire | no visible | |
| Domen y Castell Placename, Llanerfyl | Montgomeryshire | uncertain | |
| Erwr Castell, Dyffryn Ardudwy | Erw'r Castell | Merioneth | no visible |
| Ffridd y Castell Placename, Banwy | Ffriddycastell | Montgomeryshire | no visible |
| Ffridd Y Castell Placename, Glantwymyn | Montgomeryshire | no visible | |
| Gaer Fan Foel Placename, Llywel | Brecknockshire | no visible | |
| Gaergyno Placename, Llanwrin | Caecyno | Montgomeryshire | no visible |
| Garn Defended Homestead | Glamorgan | no visible | |
| Glyn Castle | Clun y Castell; Soflen | Glamorgan | earthwork |
| Gnoll House | Glamorgan | no visible | |
| Gwar y Castell and Cae Castell Placenames, Llangurig | Montgomeryshire | no visible | |
| Gwrych | Y Fron | Denbighshire | no visible |
| Hensol Castle | Glamorgan | no visible | |
| Howells Castle, Tenby | Pembrokeshire | earthwork | |
| Keeston Castle, Camrose | Pembrokeshire | no visible | |
| Llancanery Castell | Carmarthenshire | no visible | |
| Llandough juxta Penarth | Llandochau; Llan Doche Penarth | Glamorgan | no visible |
| Llantwit Major Tower | Glamorgan | earthwork | |
| Lluest Llewelyn Placename, Llangurig | Ty'n y Graigon | Montgomeryshire | no visible |
| Llyswen Manor Hall | Cardiganshire | no visible | |
| Maes y Castell Placename | Maes-y-castell | Montgomeryshire | no visible |
| Maes y Castell Placename, Newton | Montgomeryshire | no visible | |
| Marsh House, East Aberthaw | Glamorgan | major building | |
| Moel Garn, Llangeinwyr | Glamorgan | earthwork | |
| Mount Field Placename, Painscastle | Cae y Brwnt | Radnorshire | no visible |
| Nantmel Castle | Radnorshire | earthwork | |
| Nantmel Castle Hill | Pen y Castell | Radnorshire | no visible |
| Old Castle upon Alun | Castle upon Alen | Glamorgan | no visible |
| Old Cogan Hall Farm | Glamorgan | uncertain | |
| Pen Castell Placename, Aberedw | Radnorshire | no visible | |
| Pen y Bryn y Castell | Merioneth | no visible | |
| Pen y Ddinas and Banc y Ddinas Placenames | Brecknockshire | no visible | |
| Pen y Gader Fawr Placename, Llanbedr Ystradwy | Brecknockshire | earthwork | |
| Pen y Gaer Placename, Berriew | Montgomeryshire | no visible | |
| Red Castle | Ty Coch | Monmouthshire | earthwork |
| Rhos y Castell Placename, Llangurig | Dol y Castell | Montgomeryshire | no visible |
| Rulam | Glamorgan | uncertain | |
| Ruthin Castle, St Mary Hill | Glamorgan | no visible | |
| Salt House, Port Eynon | Glamorgan | masonry footings | |
| Scurlage Castle, Port Eynon | Llanddewi; Scurlagiscastel; Skorlocastell | Glamorgan | no visible |
| Stanage Park | Stanage Castle | Radnorshire | no visible |
| Stormy Castle, Barraston | Glamorgan | no visible | |
| Stout Hall, Reynoldston | Stout Walls; Stouthall | Glamorgan | no visible |
| Sweldon | Glamorgan | cropmark/slight earthwork | |
| Talgarth 'Castle' | Brecknockshire | no visible | |
| Towy Castle | Carmarthenshire | uncertain | |
| Tre Castell Building | Tre-gastell | Montgomeryshire | masonry footings |
