Peter De Mortimer
Generation: 1
Generation: 3
Generation: 4
1. Peter De Mortimer (son of Ralph De Mortimer and Gwladus Ferch Llywelyn).
2. Ralph De Mortimer was born Bef 1198 (son of Roger De Mortimer and Isabel De Ferrers); died Bef 2 Oct 1246. Ralph married Gwladus Ferch Llywelyn 1230. Gwladus (daughter of Llywelyn Ap Iorwerth and Joan) was born 1206; died 1251. [Group Sheet]
3. Gwladus Ferch Llywelyn was born 1206 (daughter of Llywelyn Ap Iorwerth and Joan); died 1251. Children:
- Roger De Mortimer was born 1231; died 30 Oct 1282; was buried Wigmore Abbey.
- Hugh De Mortimer
- John De Mortimer
- 1. Peter De Mortimer
Generation: 3
4. Roger De Mortimer was born Bef 1153 (son of Hugh De Mortimer and Matilda Le Meschin); died Bef 8 Jul 1214. Roger married Isabel De Ferrers Bef 1196. Isabel (daughter of Walchelin De Ferriers) died Bef 29 Apr 1252. [Group Sheet]
5. Isabel De Ferrers (daughter of Walchelin De Ferriers); died Bef 29 Apr 1252. Children:
- 2. Ralph De Mortimer was born Bef 1198; died Bef 2 Oct 1246.
- Joane Mortimer was born Abt 1194, England; died 1268.
- Hugh De Mortimer died 1227.
- Philip Mortimer
6. Llywelyn Ap Iorwerth was born 1173, Dolwyddelan, Caernarvonshire, Wales (son of Iorwerth Drwyndwn); died 11 Apr 1240, Cistercian, Wales; was buried , Aberconwy, Wales. Llywelyn married Joan Abt 1204. (daughter of John Lackland Plantagenet and Isabel De Taillefer) was born Abt 1191; died 2 Feb 1237. [Group Sheet]
7. Joan was born Abt 1191 (daughter of John Lackland Plantagenet and Isabel De Taillefer); died 2 Feb 1237. Children:
- Helen Ferch Llywelyn was born Abt 1206; died 1253.
- 3. Gwladus Ferch Llywelyn was born 1206; died 1251.
- Dafdd Ap Llywelyn was born Abt 1215, England; died 25 Feb 1246.
- Margaret Ap Llywelyn
Generation: 4
8. Hugh De Mortimer was born Bef 1117 (son of Hugh De Mortimer); died 26 Feb 1181. Hugh — Matilda Le Meschin. [Group Sheet]
9. Matilda Le Meschin (daughter of William Le Meschin). Children:
- 4. Roger De Mortimer was born Bef 1153; died Bef 8 Jul 1214.
10. Walchelin De Ferriers (son of Henry De Ferriers); died 1201. Children:
- 5. Isabel De Ferrers died Bef 29 Apr 1252.
- Henry De Ferriers
- Hugh De Ferriers
12. Iorwerth Drwyndwn (son of Owain Gwynedd). Children:
- 6. Llywelyn Ap Iorwerth was born 1173, Dolwyddelan, Caernarvonshire, Wales; died 11 Apr 1240, Cistercian, Wales; was buried , Aberconwy, Wales.
- Dafydd Ap Iorwerth
14. John Lackland Plantagenet was born 24 Dec 1167, Oxfordshire, England (son of Henri II Plantagenêt and Aliénor D' Aquitaine Guienne); died 18 Oct 1216, Nottinghamshire, England; was buried Worcester Cathedral. John married Isabel De Taillefer 29 Aug 1189. Isabel (daughter of Aymer De Taillefer and Aliz De Courtenay) was born Abt 1175; died 1246. [Group Sheet]
15. Isabel De Taillefer was born Abt 1175 (daughter of Aymer De Taillefer and Aliz De Courtenay); died 1246. Children:
- Henry III Plantagenet was born 1 Oct 1206, Winchester, Hampshire, England; died 16 Nov 1272, England; was buried Westminster Abby.
- 7. Joan was born Abt 1191; died 2 Feb 1237.