| # | Children | Name | Born | Died | Father | Mother |
| 1 | | | b. Abt 1306 | d. 16 Dec 1351 | Roger de MORTIMER, Earl of March | Joan de GENEVILLE, Countess of March |
| 2 | | | b. Abt 1307 | d. Aft Aug 1345 | Roger de MORTIMER, Earl of March | Joan de GENEVILLE, Countess of March |
| 3 | | | b. Abt 1308 | d. Yes, date unknown | Roger de MORTIMER, Earl of March | Joan de GENEVILLE, Countess of March |
| 4 | | | b. 1308 | d. 5 May 1337 | Roger de MORTIMER, Earl of March | Joan de GENEVILLE, Countess of March |
| 5 | | | b. 1309 OR 1310 | d. Bef 6 Sep 1369 | Roger de MORTIMER, Earl of March | Joan de GENEVILLE, Countess of March |
| 6 | | | b. Abt 1310 | d. Yes, date unknown | Roger de MORTIMER, Earl of March | Joan de GENEVILLE, Countess of March |
| 7 | | | b. Abt 1313 | d. Abt 1368 | Roger de MORTIMER, Earl of March | Joan de GENEVILLE, Countess of March |
| 8 | | | b. Abt 1313 | d. 1337 OR 1351 | Roger de MORTIMER, Earl of March | Joan de GENEVILLE, Countess of March |
| 9 | | | b. Abt 1316 | d. 1347 | Roger de MORTIMER, Earl of March | Joan de GENEVILLE, Countess of March |
| 10 | | | b. Abt 1321 | d. Yes, date unknown | Roger de MORTIMER, Earl of March | Joan de GENEVILLE, Countess of March |
| 11 | | | b. Abt 1322 | d. 16 Oct 1383 | Roger de MORTIMER, Earl of March | Joan de GENEVILLE, Countess of March |