| Name | aka | Birth date | Birth location | Marriage date | Marriage location | Death date | Death location |
| Helen de l'Isle | | Abt. 1174 | Wigtownshire, Scotland | Abt. 1205 | Carrick, Ayrshire, Scotland | Abt. 1212 | |
| Albrada de Lisours | | 1128 | Holton, Yorkshire, England | WFT Est. 1159-1186 | | 1193 | |
| Robert de Lisours | | 1097 | Lincoln, Lincoln, England | 1113 | | WFT Est. 1131-1188 | |
| Emmaline de Longespee | | WFT Est. 1207-1230 | | WFT Est. 1239-1271 | | WFT Est. 1252-1318 | |
| Maud de Longespic | | WFT Est. 1116-1139 | | WFT Est. 1148-1180 | | WFT Est. 1161-1227 | |
| Etienette de Longwy | | | | | | Aft. 1088 | |
| George de Lumley | | WFT Est. 1429-1457 | | WFT Est. 1445-1480 | | WFT Est. 1462-1536 | |
| John de Lumley | | 1384 | | WFT Est. 1415-1449 | | WFT Est. 1415-1475 | |
| Ralph de Lumley | | WFT Est. 1333-1362 | | WFT Est. 1374-1406 | | WFT Est. 1387-1447 | |
| Thomas de Lumley | | 1408 | | WFT Est. 1439-1473 | | WFT Est. 1439-1498 | |
| Hugh de Lusignan | | WFT Est. 1132-1161 | | WFT Est. 1156-1203 | | WFT Est. 1186-1246 | |
| Piers de Lutegareshale | | 1134 | Cherhill, Wilts, England | WFT Est. 1166-1200 | | WFT Est. 1166-1225 | |
| Alice de Mandeville | | 1140 | Rycott, Oxford, England | WFT Est. 1181-1189 | | WFT Est. 1181-1235 | |
| Geoffrey de Mandeville | | 1092 | Rycott, Oxford, England | WFT Est. 1137-1143 | | September 14, 1144 | |
| Maud de Mandeville | | 1138 | Pleshey, Essex, England | WFT Est. 1166-1200 | | WFT Est. 1166-1232 | |
| William de Mandeville | | 1062 | Rycott, Oxford, England | WFT Est. 1103-1126 | | 1130 | |
| Adelaide de Maurienne of Savoy | | Abt. 1092 | Savoie, France | April 1115 | Paris, Seine, France | November 18, 1154 | |
| Manuel de Maximo | | | | | | | |
| Sariphino de Maximo | | | | | | 1850 | |
| Hawise de Meschines | | 1180 | Chester, England | WFT Est. 1208-1218 | | WFT Est. 1211-1274 | |
| Hugh de Meschines | | 1147 | Kevelioc, Wales | 1169 | | June 30, 1181 | Chester, England |
| Mabel de Meschines | | 1172 | Chester, Chester, England | WFT Est. 1200-1217 | | WFT Est. 1200-1266 | |
| Adeline de Meulan | | | | | | | |
| Phillippa de Montagu | | Abt. 1332 | Salisbury, Wiltshire, England | Abt. 1354 | Donyatt, Somesetshire, England | January 5, 1381/82 | Berkshire, England |
| William de Montagu | Montacute, William | 1303 | Cassington, Oxfordshire, England | 1327 | Cassington, Oxfordshire, England | January 30, 1343/44 | Berkshire, England |
| Ponce de Montegomery | | 1109 | La March, Normandy, France | | | WFT Est. 1138-1203 | |
| Roger de Montegomery | | WFT Est. 1058-1087 | | WFT Est. 1099-1131 | | WFT Est. 1112-1172 | |
| Amaury de Montford | | 1070 | Montfort, Eure, France | 1120 | | 1137 | |
| Simon de Montford, Comte d'Evreux | | | | | | | |
| Bertrada de Montfort | de Montford, Bertrade, Bertrade D'Evreux | 1060 | Montfort, Eure, France | WFT Est. 1087-1106 | France | February 14, 1116/17 | Maine-et-Loire, France |
| Bertrade de Montfort | | 1155 | Normandy, France | 1169 | | 1227 | |
| Simon de Montfort | | 1117 | Montfort, Eure, France | WFT Est. 1148-1173 | | March 13, 1180/81 | |
| Hugh de Montgomery | | | | | | | |
| Roger I (the Great) de Montgomery | | | | | | | |
| Roger de Montgomery, Earl of Shrewsbury 1 | | | | 1048 | | July 27, 1094 | |
| Sybil de Montgomery | | WFT Est. 1048-1071 | | WFT Est. 1080-1112 | | WFT Est. 1093-1159 | |
| Emma de Mortaigne | | 1058 | Mortaigne, France | 1080 | | WFT Est. 1086-1152 | |
| Hugh de Mortimer | | WFT Est. 1107-1136 | | WFT Est. 1148-1180 | | WFT Est. 1161-1221 | |
| Isolde de Mortimer | de Mortimer, Isolt | Abt. 1265 | Herefordshire, England | WFT Est. 1293-1322 | Wigmore, Herefordshire, England | Aft. 1336 | |
| Roger de Mortimer | | 1158 | Wigmore, England | WFT Est. 1194-1212 | | 1215 | |
| Roger de Mortimer, 1st Earl of March | | 1287 | | | | 1330 | |
| Ermengarde de Nevers | | 1073 | Nevers, Nievre, France | 1095 | | WFT Est. 1103-1167 | |
| Geoffrey de Neville | | Abt. 1100 | Raby, Durham, England | WFT Est. Bef. 1110 | | WFT Est. 1132-1191 | |
| Geoffrey de Neville | | 1150 | Raby, Durham, England | Bef. 1174 | England | Bef. September 29, 1193 | |
| Geoffrey FitzRobert de Neville | FitzMaldred, Geoffrey FitzRobert | 1200 | Raby, With Keverstone, Staindrop, Durham, England | Abt. 1222 | Durham, England | 1242 | |
| Gilbert de Neville | | Abt. 1128 | Raby With Keverstone, Durham, England | Abt. 1138 | Horncastle, Lincolnshire, England | 1168 | |
| Isabel de Neville | | Abt. 1176 | Raby, With Keverstone, Staindrop, Durham, England | WFT Est. 1204-1237 | Brancepeth, Durham, England | 1254 | |
| John de Neville, Lord Neville of Raby 3rd | | 1341 | Raby, Durham, England | 1364 | | 1388 | |
| Margaret de Neville | | Abt. 1329 | Raby, Durham, England | July 12, 1358 | Brancepeth, Durham, England | May 12, 1372 | |
| Ralph de Neville, Earl of Westmoreland 1sr | | 1363 | Raby, Durham, England | February 3, 1395/96 | England | October 21, 1425 | Raby Castle, Durham, England |