| # | Children | Name | Born | Died | Father | Mother |
| 1 | | | b. 1340 | d. 25 Jun 1369 | John 2Nd Baron De Beaumont, Earl Of Buchan, Mp | Eleanor Lancaster Plantagenet, Countess Arundel |
| 2 | | | | d. Unknown | John 2Nd Baron De Beaumont, Earl Of Buchan, Mp | Eleanor Lancaster Plantagenet, Countess Arundel |
| 3 | | | b. Abt 1342 | d. 3 Jul 1367 | John 2Nd Baron De Beaumont, Earl Of Buchan, Mp | Eleanor Lancaster Plantagenet, Countess Arundel |
| 4 | | | b. Abt 1348 | d. 16 Dec 1379 | Richard II "Copped Hat" Fitzalan, Earl Arundel | Eleanor Lancaster Plantagenet, Countess Arundel |
| 5 | | | b. Abt 1352 | d. 19 Feb 1413 | Richard II "Copped Hat" Fitzalan, Earl Arundel | Eleanor Lancaster Plantagenet, Countess Arundel |
| 6 | | | b. Abt 1354 | | Richard II "Copped Hat" Fitzalan, Earl Arundel | Eleanor Lancaster Plantagenet, Countess Arundel |
| 7 | | | b. Abt 1356 | d. Bef 24 Jan 1376 | Richard II "Copped Hat" Fitzalan, Earl Arundel | Eleanor Lancaster Plantagenet, Countess Arundel |
| 8 | | | b. Abt 1348 | d. 7 Apr 1419 | Richard II "Copped Hat" Fitzalan, Earl Arundel | Eleanor Lancaster Plantagenet, Countess Arundel |
| 9 | | | b. Abt 1352 | d. 17 Mar 1415/1416 | Richard II "Copped Hat" Fitzalan, Earl Arundel | Eleanor Lancaster Plantagenet, Countess Arundel |
| 10 | | | b. Abt 1345 | d. 7 Apr 1419 | Richard II "Copped Hat" Fitzalan, Earl Arundel | Eleanor Lancaster Plantagenet, Countess Arundel |
| 11 | | | b. 25 Mar 1346 | d. 21 Sep 1397 | Richard II "Copped Hat" Fitzalan, Earl Arundel | Eleanor Lancaster Plantagenet, Countess Arundel |