Eustache was born about 1280, the daughter of Robert d'Argies and Béatrix de Walincourt. The place is not known.
She died on 16 JAN 1357. The place is not known.
Her husband was Jean II de Barbançon. They were married, but the date and place have not been found. Their three known children were Jean III (c1310-1378), Agnès (c1300-?) and Hugues (c1320-1379).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | ABT 1280 |
|
|||
| Death | 16 JAN 1357 |
|
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | dame de Bonneuil-le-Plessier et de Lawarde-Mauger |