Castle,Grid Ref,Original type,Date,Topography,Height,Top ,Base m²,Gradient,Bailey,Builder,Theory Abergavenny,SO 29847 13974,motte/masonry,1081 D,Natural defence,tall,nd,nd,steep,1,,Early Bach Motte,SO 29787 43413,motte W,nd,Natural defence,6.23,27.49,401.738,47.48,?,?,Early Bacton,SO 37097 33554,motte W,nd,Natural defence,1.62,82.53,268.55,49.25,1,?,Late Bredwardine 1,SO 33497 44298,possible motte,1374 D,Natural defence,tall,nd,nd,steep,1,?,Early Bryngwyn,SO 39362 08799,motte,1855 D,Open,3.75,89.597,551.06,49.36,?,?,Mid Caerleon,ST 34257 90553,motte/masonry,1086 D,Open,16.19,412.235,3235.225,77.5,?,?,Early Caerwent 1,ST 46767 90623,motte W,nd,Open,nd,nd,nd,nd,1,?,Early Castle Farm,SO 40622 38398,possible motte,nd,Open,nd,nd,nd,nd,1,?,Late Chanstone Tump 1,SO 36547 35894,possible motte,nd,Open,2.6,574.189,1551.497,43.86,?,?,Late Clifford,SO 24287 45633,motte/masonry,1067/71 D,Natural defence,tall,nd,nd,steep,1,William fitz Osbern,Early Colstar Motte,ST 31872 92533,motte,nd,Natural defence,5.89,190.08,738.43,65.16,1,?,Mid Cothill Farm,SO 33827 36293,motte W,nd,Natural defence,3.56,261.537,655.857,60.04,?,?,Late Cusop Castle,SO 33922 41393,fortified-site,1335 D,Natural defence,3.27,978.029,2212.054,49.27,1,?,Late Didley,SO 45022 31964,motte,nd,Natural defence,5.79,53.142,475.691,48.84,1,?,Mid Digget's Wood,SO 44052 29454,?,nd,Open,nd,nd,nd,nd,nd,?,? Dingestow 1,SO 45977 10354,motte,nd,Natural defence,8.17,122.313,759.525,76.45,1,?,Early Dingestow 2,SO 45567 10399,motte/masonry,1182 D ,Natural defence,2.69,1752.164,4667.031,62.06,1,Ranulf Poer,Late Dorstone,SO 31217 41623,motte,nd,Open,6.79,727.411,2704.195,72.01,2,?,Mid Ewyas Harold,SO 38502 28699,motte,1052 D,Natural defence,16.36,384.839,3815.745,70.33,1,William fitz Osbern,Early Great Goytre,SO 35292 23284,motte W,nd,Natural defence,4.78,56.15,268.66,64.05,1,?,Mid Howton,SO 41487 29389,fortified-site,nd,Open,2.38,83.283,1268.06,32.27,?,?,Late Kemeys Inferior,ST 38877 93928,ring-work,nd,Natural defence,,,,,1,?,? Kentchurch,SO 42152 27009,fortified-site,nd,Natural defence,nd,nd,nd,nd,?,?,Late Kilpeck,SO 44387 30464,motte/masonry,L11th E 12th P,Open,high,nd,nd,steep,3,?,mid King's Caple,SO 55932 28774,motte,nd,Open,4.59,439.248,1224.951,43.06,1,?,Late Langstone,ST 37037 89522,motte,1189 D,Natural defence,medium,nd,nd,steep,1,?,Mid Llanarth,SO 36237 09614,motte,E 13th P,Open,5.62,237.379,1589.705,47.92,1,?,Mid Llancillo,SO 36697 25539,motte,nd,Open,6.22,289.906,1117.238,68.29,1,?,Early Llanfair Kilgeddin,SO 34947 06934,motte,nd,Open,3.02,131.433,536.961,53.23,?,?,Late Llanfihangel Crucorney,SO 33027 21769,motte,nd,Natural defence,7.88,35.951,801.953,62,1,?,Early Llangiby 2,ST 37012 97363,fortified-site,nd,Open,2.56,2279.535,3688.864,57.91,1,?,Late Llangovan,SO 45147 07044,motte,nd,Open,6.87,225.887,1095.035,74.02,?,?,Early Llangwm Isaf,SO 42422 01119,motte W,nd,Natural defence,2.93,926.409,1633.816,55.56,1,?,? Llangwm Uchaf,ST 42727 99798,motte W,nd,Natural defence,1.52,274.532,481.561,38.53,?,?,Early Llanvaches,ST 43397 92053,?,nd,Open,,,,,?,?, Moccas,SO 34800 42500,fortified-site,nd,Open,,,,,?,?,Late Monnington Straddle,SO 38197 36813,fortified-site,nd,Open,2.79,485.493,967.29,52.47,?,?,Late Mount Ballan,ST 48757 89537,motte,nd,Open,4.16,67.688,616.866,47.37,1,?,Early Mouse Castle 1,SO 24827 42458,motte W,nd,Natural defence,4.5,65.421,830.706,93.1,1,?,Early Much Dewchurch,SO 48542 31259,fortified-site,nd,Open,2.93,1201.409,2133.285,39.6,?,?,Late Mynydd-brīth,SO 27997 41463,motte W,nd,Natural defence,5.27,213.653,712.482,81.18,1,?,Early Nant-y-bar,SO 27852 41023,motte W,nd,Natural defence,3.79,431.494,985.427,50.38,?,?,? Nant-y-Glasdr,SO 23600 42600,?,nd,Open,,,,,?,, Newcastle,SO 44737 17239,motte,nd,Natural defence,6.21,31.03,498.02,57.77,2,?,Early Newport (Stow),ST 30400 87400,possible motte,nd,Natural defence,nd,nd,nd,nd,?,?,? Newton Tump,SO 29272 44053,motte,nd,Open,3.57,143.37,651.298,63.39,1,?,Mid Old Castleton,SO 28302 45723,ring-work/motte,1140-1180 P,Natural defence,8.74,164.495,1195.056,58.94,3,?,Early Orcop,SO 47282 26529,motte,nd,Open,6.59,270.4,1200.442,75.77,1,?,Early Penrhos,SO 40952 13169,motte,1248 D,Open,3.98,135.449,1168.611,41.79,,?,Late Penyclawdd,SO 30967 20139,fortified-site,13th P,Open,1.71,327.367,619.132,55.53,?,?,Late Pont Hendre,SO 32572 28109,motte,nd,Natural defence,10.39,121.303,1519.893,63.01,1,?,Early Poston,SO 35807 37078,fortified-site,nd,Natural defence,2.2,718.423,2155.721,23.52,1,?,Late Rockfield,SO 48267 14129,motte,nd,Natural defence,4.19,156.74,364.472,55.7,1,?,Early Rogerstone,ST 27100 87800,?,nd,Natural defence,,,,,?,?, Rowlestone,SO 37442 27164,motte W,nd,Natural defence,4.06,368.29,820.907,71.7,?,?,Early Silver Tump (Craswall),SO 28900 32800,?,?,Natural defence,?,?,?,?,?,?, Snodhill,SO 32237 40358,motte/masonry,nd,Natural defence,tall,nd,nd,steep,1,?,Early St Illtyd,SO 21692 01954,motte W,nd,Natural defence,5.3,269.8,888.666,70.31,?,?,Early St Margaret's,SO 35800 33900,?,?,Natural defence,?,?,?,?,?,, St Weonards Tump,SO 49657 24329,motte,nd,Natural defence,6.15,531.984,965.948,81.28,?,?,Early Thruxton,SO 43512 34649,motte,nd,Open,4.88,244.087,840.946,69.83,,?,Mid Tregate Castle Farm,SO 47977 17114,fortified-site,nd,Natural defence,,,,,1,?,Late Trelech ,SO 49952 05409,motte,1175 -1200 P,Natural defence,5.76,142.762,758.373,71.74,1,?,Early Trippenkennet,SO 50057 22454,fortified-site,?,Open,?,?,?,?,?,?,Late Twmbarlwm,ST 24382 92653,motte W,nd,Natural defence,5.58,185.794,1614.864,56.44,1,?,Early Twyn-y-Corras,ST 41907 24994,fortified-site,?,Open,?,?,?,?,?,?,Late Urishay,SO 32292 37568,fortified-site,?,Natural defence,?,?,?,?,?,?,Late Walterstone,SO 33932 24999,motte,nd,Natural defence,7.06,574.189,1551.497,62.99,?,?,Early Whitehouse Camp,SO 29572 35684,fortified-site,nd,Natural defence,1.93,64.353,959.311,32.72,,?,Late Whitney Castle,SO 27300 46500,?,?,Open,?,?,?,?,?,, Wolvesnewton,ST 44912 99883,fortified-site,nd,Natural defence,3.31,3826,6412,55.75,?,?,Late