Agnes (of March) De Mortimer
- 1368(
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- 1 Agnes (of March) De Mortimer [1] d. 21 Jul 1368
- Laurence (1st Earl of Pembroke, 3rd Lord) Hastings b. 20 Mar 1318-1319 d. 30 Aug 1348
- 2 John (2nd Earl of Pembroke, 4th Lord) Hastings [1.1] d. 16 Apr 1376
- + Margaret Plantagenet b. 20 Jul 1346 d. Yes, date unknown
- Anne Baroness Manny b. 24 Jul 1355 d. 3 Apr 1384
- 3 John (3rd Earl of Pembroke, 5th Lord) Hastings [1.1.1] b. 11 Nov 1372 d. 1389
- + Elizabeth of Lancaster Plantagenet b. 1362 d. Yes, date unknown
- + Philippa De Mortimer
- + Elizabeth of Lancaster Plantagenet b. 1362 d. Yes, date unknown
- 3 John (3rd Earl of Pembroke, 5th Lord) Hastings [1.1.1]
- + Margaret Plantagenet b. 20 Jul 1346 d. Yes, date unknown
- 2 John (2nd Earl of Pembroke, 4th Lord) Hastings [1.1]
- + John De Hakeiut d. Yes, date unknown