| William de Valence Knt., Earl of Pembroke (~1226 - <1296) |
Guy III de Châtillon Count de Saint-Pol ( - 1317) |
| Joan de Münchensy (~1245 - 1307) |
Marie of Brittany (1268 - 1339) |
| Aymer de Valence Knt., 10th Earl of Pembroke, etc. | Mary (or Marie) de Châtillon |
| b. abt 1270, "Probably" d. 23 Jun 1324, Compiègne, France bur. occ. cen. im. . ud. |
b. d. 16 (or 17) Mar 1377, Denny, Cambridgeshire, England bur. Denny, Cambridgeshire, England occ. cen. im. . ud. |