| William Marshal Knt., 4th Earl of Pembroke, etc. (1146 - 1219) |
|
| Isabel fitz Gilbert de Clare (~1172 - 1220) |
| Walter Dunstanville | Sibyl Marshall |
| b. abt 1204 d. bur. occ. cen. im. . ud. |
b. abt 1208, Of Pembroke, Pembrokeshire, Wales d. 27 Apr 1245, England bur. Strongbow occ. cen. im. . ud. |
| Spouses: 1, 2, 3 |