| # | Children | Name | Born | Died | Father | Mother |
|---|
| 1 | | | b. 1301 | d. Yes, date unknown | Ralph De MONTHERMER, BARON MONTHERMER | Joan "of Acre" Princess of ENGLAND, COUNTESS OF GLOUCESTER & HERTFORD |
| 2 | | | b. Abt 1310 | d. Yes, date unknown | Ralph De MONTHERMER, BARON MONTHERMER | Joan "of Acre" Princess of ENGLAND, COUNTESS OF GLOUCESTER & HERTFORD |
| 3 | | | b. 10 May 1291 | d. 24 Jun 1314 | Gilbert "the Red Earl" de CLARE, EARL OF GLOUCESTER & HERTFORD | Joan "of Acre" Princess of ENGLAND, COUNTESS OF GLOUCESTER & HERTFORD |
| 4 | | | b. Oct 1292 | d. 30 Jun 1337 | Gilbert "the Red Earl" de CLARE, EARL OF GLOUCESTER & HERTFORD | Joan "of Acre" Princess of ENGLAND, COUNTESS OF GLOUCESTER & HERTFORD |
| 5 | | | b. 16 Sep 1295 | d. 4 Nov 1360 | Gilbert "the Red Earl" de CLARE, EARL OF GLOUCESTER & HERTFORD | Joan "of Acre" Princess of ENGLAND, COUNTESS OF GLOUCESTER & HERTFORD |
| 6 | | | b. 22 Dec 1314 | d. 9 Apr 1342 | Gilbert "the Red Earl" de CLARE, EARL OF GLOUCESTER & HERTFORD | Joan "of Acre" Princess of ENGLAND, COUNTESS OF GLOUCESTER & HERTFORD |
1272 - 1307 (~ 35 years)