1116 - 1173 (57 years)
| Eighth Earl of Clare, Sixth Earl of Hertford, 6th Earl of Gloucester Richard de Clare, IV | |
| B: | 4 Aug 1222 |
| England | |
| D: | 14 Jul 1262 |
| Waltham, Kent, England | |
 | Maud de Lacy 1223-1289 |
| Maud de Lacy | |
| B: | 25 Jan 1223 |
| Lincoln, Lincolnshire, England | |
| M: | 2 Feb 1238 |
| D: | 10 Mar 1289 |
| Lincoln, Lincolnshire, England | |
 | Isabel de Clare 1226-1264 |
| Isabel de Clare | |
| B: | 8 Nov 1226 |
| Tewkesbury, Gloucestershire, England | |
| D: | 10 Jul 1264 |
| Cleveland Port, Yorkshire, England | |
| 5th Lord of Annandale Sir Robert de Brus, V | |
| B: | 1210 |
| Lochmaben, Dumfries-shire, Scotland | |
| D: | 31 May 1295 |
| Lochmaben, Dumfries-shire, Scotland | |
| 4th Earl of Hertford and 5th Earl of Gloucester Gilbert de Clare, III | |
| B: | 1180 |
| Hertford, Hertfordshire, England | |
| D: | 25 Oct 1230 |
| St Laurent, Gironde, Aquitaine, France | |
 | Countess of Cornwall Isabel Marshall 1200-1240 |
| Countess of Cornwall Isabel Marshall | |
| B: | 9 Oct 1200 |
| Pembroke, Pembrokeshire, Wales | |
| M: | 9 Oct 1217 |
| D: | 17 Jan 1240 |
| Hertfordshire, England | |
| Earl of Clare Richard de Clare 1153-1217 |
| Earl of Clare Richard de Clare | |
| B: | 1153 |
| Tonbridge, Kent, England | |
| D: | 1217 |
| Oxfordshire, England | |
| Countess of Hertford and Gloucesterde Mellent Caen Amice FitzWilliam | |
| B: | 1160 |
| Tewkesbury, Gloucestershire, England | |
| M: | 1179 |
| Hertford, Hertfordshire, England | |
| D: | 1 Jan 1224 |
| Devon, England | |
 | Sir Reynold de Mohun, III 1225-1278 |
| Sir Reynold de Mohun, III | |
| B: | 1225 |
| D: | 1278 |
| France | |
 | Knight of Munster John de Mohun, I 1232-1253 |
| Knight of Munster John de Mohun, I | |
| B: | 1232 |
| Dunster, Somerset, England | |
| D: | 1253 |
| Dunster, Somerset, England | |
 | Joan de Ferrers Abt 1233- |
| Joan de Ferrers | |
| B: | Abt 1233 |
| Derbyshire, England | |
| M: | Abt 1245 |
| Derby, Derbyshire, England | |
| D: | Addington, Surrey, England |
| Lucy de Mohun 1226-1282 |
| Lucy de Mohun | |
| B: | 1226 |
| Dunster, Somerset, England | |
| D: | 24 May 1282 |
| Derby, Derbyshire, England | |
 | Sir John de Grey 1224-1272 |
| Sir John de Grey | |
| B: | 1224 |
| Codnor, Derbyshire, England | |
| D: | 5 Jan 1272 |
| Aylesford, Kent, England | |
| Lady of Streatley and Dunster Lady Hawise FitzGeoffrey | |
| B: | 1210 |
| Shere, Surrey, England | |
| D: | 8 Aug 1247 |
| Earls Colne, Essex, England | |
| 5th Baron of Dunster Sir Reynold de Mohun, II Abt 1206-1258 |
| 5th Baron of Dunster Sir Reynold de Mohun, II | |
| B: | Abt 1206 |
| Dunster, Somerset, England | |
| M: | 1227 |
| Dunster, Somerset, England | |
| D: | 20 Jan 1258 |
| Devon, England | |
| Lady Munchensy Eveline de Clare 1160-1225 |
| Lady Munchensy Eveline de Clare | |
| B: | 1160 |
| Tonbridge, Kent, England | |
| D: | 4 Jun 1225 |
| Hereford, Herefordshire, England | |
| 4th Earl Of Essex Geoffrey FitzPiers 1162-1213 |
| 4th Earl Of Essex Geoffrey FitzPiers | |
| B: | 1162 |
| Wallend, Essex, England | |
| M: | 1204 |
| D: | 14 Oct 1213 |
| Norfolk, England | |
| 2nd Earl of Hertford Roger de Clare 1116-1173 |
| 2nd Earl of Hertford Roger de Clare | |
| B: | 1116 |
| Tonbridge, Kent, England | |
| D: | 1173 |
| Oxfordshire, England | |
| Countess Arundel Matilda 'Maud' de St Hilary | |
| B: | 1132 |
| Walsingham, Norfolk, England | |
| M: | 1153 |
| Norfolk, England | |
| D: | 24 Dec 1193 |
| Buckenham, Norfolk, England | |
We make every effort to document our research. There is a lot of information that I do not have, and I know there are mistakes in this tree. My feelings will not be hurt if you give me corrections or additional information, especially if you can provide sources for the information.
