- de Lalonde
- de Lancaster
-
Avice (1155 - 1190)Eleanor ( - 1372)Gilbert (Sir) (circa 1089 - )William (1115 - 1170)
- de Langtun
- de Laringue
- de Lavoye
- de Lea
- de Lee
-
Thomas (Sir) (1460 - 1526)
- de Leigh
-
Bartholomew (circa 1156 - circa 1217)Hugh (circa 1126 - )Nichole (circa 1185 - )
- de Lessard
-
Jacques (circa 1593 - )Marie-Anne (1685 - )Marie-Jeanne (1687 - )
- de Leuchars
-
Orabella ( - before 1203)
- de Leyburn
- de Lindsay
-
Alan (circa 1058 - )Alianore (circa 1124 - )David (circa 1203 - )David (circa 1235 - )Galfrid (circa 1090 - )Ralph (circa 1026 - )Walter (circa 1122 - )Walter (circa 1172 - )Walter (circa 1231 - )William (circa 1096 - )William (circa 1148 - )William (circa 1182 - )William (circa 1198 - )
- de Lisle
-
Alice (circa 1058 - )Humphrey (circa 1032 - )
- de Lisoures
- de Longchamp
-
Henry (circa 1210 - )Maud (circa 1245 - )
- de Longespée
-
Eleanor ( - 1276)Stephen (circa 1216 - 1260)
- de Louvaine
-
Eleanor (1345 - 1397)
- de Lovaine
-
Hawise (circa 1215 - )Matthew (circa 1185 - )
- de Lucy
-
Geoffrey ( - 1399)Geoffrey ( - 1234)Geoffrey (1267 - )Geoffrey (1287 - 1346)Maud (circa 1406 - 1439)Richard ( - 1179)
- de Lumley
-
Marmaduke (1314 - 1365)Ralph (Sir) (circa 1360 - 1399)
- de Lusignan
-
Alice ( - 1255)Hugh le Brun ( - 1151)Hugh V ( - 1060)Hugh VI ( - 1110)Hugh X ( - 1249)
Isabella of Angoulême (1188 - 1246)Raoul I ( - 1219) - de Lutegareshale
-
Piers (1134 - 1179)
- de Lyons
-
Elizabeth (1324 - )John ( - 1312)
- de Mainwaring
-
Ralph (1155 - )Roger (circa 1130 - )
- de Mandeville
-
Beatrix ( - 1197)Geoffrey ( - 1144)Geoffrey (circa 1046 - )Maud (1138 - )Maud FitzGeoffrey ( - 1236)William ( - before 1130)
- de Maneville
-
Geoffrey de Maneville (circa 1130 - )William (circa 1104 - )
- de Manithrop
- de Maretz-Beauchamp
-
Johanna (1500 - )
- de Marmion
-
Elizabeth ( - 1427)
- de Martin
-
Joan (circa 1291 - from 1319 to 1322)
- de Mauduit
-
Robert ( - 1221)William ( - 1257)William ( - 1170)William ( - 1195)William ( - 1157)William (1038 - )
- de Merle
- de Meschines
-
Matilda (1121 - 1180)Ranulf ( - 1129)Ranulph de Briquessart ( - 1128)
- de Moels
-
John (1269 - 1310)Muriel (1322 - )
- de Mohun
-
Alice (1222 - )Reynold (Sir) ( - 1257)
- de Molis
- de Montacute
- de Montagu
-
John ( - 1389)John (Sir) (circa 135 - 1399)Simon (1250 - 1316)Thomas (Sir) (1388 - 1428)William ( - 1319)William (1302 - 1343)
- de Montchensy
- de Montfort
-
Bertrade d'Évreux (1155 - 1189)Bertrade l'Amaury (circa 1060 - 1117)Elizabeth ( - 1345)Isabel (1040 - )Peter ( - 1287)Peter ( - 1265)Simon ( - 1180)Thurstan ( - 1217)Thurstan (1217 - )
- de Montgomery
-
Alice (1100 - )
- de Monthermer
-
Margaret (1329 - 1394)Ralph ( - 1305)
- de Morlais
-
Pierre (1350 - )
- de Mortimer
-
Edmund (Sir) of Wigmore (1251 - 1304)Hugh (1117 - 1180)Hugh (1219 - 1274)Isolt ( - 1338)Joane ( - 1268)Katherine (1314 - 1369)Ralph (1060 - 1137)Ralph of Wigmore (1190 - 1246)Robert (1287 - 1287)Roger ( - 1214)Roger (1020 - 1078)Roger (1231 - before 1282)Roger (1287 - 1330)
- de Morville
-
Elena (circa 1170 - 1217)Hugh (circa 1105 - 1162)Richard of Lauder (1125 - 1189)Simon (circa 1079 - )
- de Morwick
- de Mountford
- de Mowbray
-
Eleanor (circa 1364 - )John (1310 - 1361)John (1340 - 1368)John (Sir) ( - 1321)Nigel ( - 1191)Roger ( - 1296)Roger (1210 - circa 1266)William ( - 1222)
- de Munchensi
-
Warin (1192 - 1255)William ( - 1204)
- de Munchensy
-
Joan ( - before 1307)
- de Munnines
-
Anthony (circa 1386 - circa 1443)Gilbert (circa 1360 - )Henry (circa 1408 - 1468)
- de Nafford
- de Nauton
- de Neuchâtel
- de Neufmarche
-
Bernard ( - 1093)Geoffroy ( - 1080)
- de Neufville
- de Neville
-
Gilbert ( - 1169)John (Sir) (circa 1331 - 1388)Ralph (1291 - 1367)Ralph (Sir) (before 1364 - 1425)Randolf (1262 - 1331)Richard (Sir) ( - 1460)Robert ( - 1271)Robert ( - 1282)
- de Newburgh
-
Alice ( - between 1246 and 1263)Henry (circa 1046 - 1119)Roger (circa 1101 - 1151)Waleran (before 1153 - 1204)
- de Newmarche
- de Newsom
-
Constance (between 1249 and 1257 - )
- de Norwich
-
Margaret (1286 - 1375)
- de Notton
-
Avina (1231 - )
- de Oakley
- de Odingsells
-
William (1216 - between 1264 and 1303)William of Mastoke ( - 1294)
- de Percy
-
Agnes (1134 - circa 1205)Alan (circa 1069 - 1135)Geoffery (circa 1005 - )Henry (Sir) ( - 1198)Henry (Sir) (circa 1235 - 1272)Henry (Sir) (1273 - 1314)Henry (Sir) (1300 - 1351)Maud ( - between 1378 and 1379)William ( - 1096)William (1112 - 1175)William (circa 1193 - circa 1245)
- de Peyferer
- de Picquigny
-
Bertha (1054 - 1145)
- de Pîtres
- de Plaiz
- de Plessetis
- de Plumpton
-
Robert (Sir) ( - 1325)William (Sir) ( - 1362)
- de Ponthieu
- de Port
- de Prayers
-
Thomas (Sir) (circa 1270 - 1348)
- de Prendergast
-
Maud (1242 - before 1273)
- de Prindergast
- de Pyne
-
Hawise (1270 - 1295)
- de Quincy
-
Elena ( - circa 1296)Hawise (circa 1250 - before 1285)Margaret (1208 - before 1266)Margaret (circa 1218 - circa 1280)Robert ( - after 1201)Robert ( - 1217)Roger (circa 1174 - 1264)Saher (circa 1100 - after 1165)Saher (1155 - 1219)
- de Ramsey
-
Emma (circa 1062 - 1094)
- de Rancon
- de Reviers
-
Baldwin ( - 1155)Richard ( - 1107)
- de Riddlesford
-
Emmeline ( - 1276)Walter ( - 1226)Walter ( - 1226)
- de Ridel
-
Geoffrey (circa 1044 - 1098)Geoffrey (circa 1075 - 1120)Matilda (circa 1097 - 1139)
- de Rie
-
Eudo FitzH (Sir) (1047 - 1120)
- de Rohart
-
Eleanor (circa 1318 - )Roger (circa 1292 - )
- de Roos
-
William (1255 - 1316)
- de Ros
-
Everard ( - circa 1186)Maud ( - 1388)Robert (Sir) ( - 1285)Robert (Sir) ( - before 1228)Thomas (Sir) (1336 - 1384)Willaim (1290 - 1342)William (Sir) ( - circa 1310)William of Hamlake (after 1192 - 1258)
- de Roucy
-
Felicie ( - 1123)
- de Rullos
- de Rumilly
- de Rupe
- de Saint-Étienne
- de Saint Amand
-
Hawaise ( - 1287)
- de Saint Aubin
- de Saint Claire
- de Saint John
-
Agnes ( - 1345)John of Basing ( - 1302)Robert ( - 1302)
- de Saint Liz
-
Maud (circa 1100 - after 1158)
- de Saint Quintin
- de Saint Saveur
- de Saint Valery
-
Maud ( - 1210)Reginald ( - 1166)
- de Salisbury
- de Salmesbury
-
Elizabeth (1256 - )William (1227 - )
- de Saluzza
-
Alisona ( - 1292)
- de Saluzzo
- de Sanford
- de Say
-
Beatrice (circa 1160 - 1197)Hugh ( - 1197)William ( - before 1177)William ( - 1144)
- de Saye
- de Segrave
-
Eleanor ( - 1314)Elizabeth (1338 - before 1368)Gilbert ( - 1254)Gilbert ( - before 1201)John (circa 1256 - 1325)John (1315 - 1353)Nicholas ( - 1295)Nicholas (1238 - )Stephen ( - 1241)