| William de Vesci (~1222 - ) |
Gauthier V de Brienne C. de Brienne, D. de Athene ( - 1311) |
| Agnes de Ferrers (~1224 - 1290) |
Jeanne de Châtillon ( - 1355) |
| Sir John de Vesci of Alnwick | Isabelle de Brienne |
| b. 18 Jul 1244, Alnwick Castle, Northumberlandshire, England d. 10 FEB 1288/89, dsp.; Montpelier, Gascony, France bur. occ. cen. im. . ud. |
b. abt 1260, Beaumont-le-Vicomte, Maine, France d. bef 1 Nov 1334, Bamburgh Castle, Northumberlandshire, England bur. Black Friars, Scarborough, Yorkshire, England occ. cen. im. . ud. |
| Spouses: 1, 2 | Spouses: 1, 2 |