Roberte was born about 1305, the daughter of Gilles IV de Beaumez and Ide d'Escayencourt. The place is not known.
She had two marriages/partners. Her first husband was Guy VII de Mauvoisin. They were married, but the date and place have not been found. Their only known child was Laure (c1335-?).
Her second husband was Louis de Marigny. They were married, but the date and place have not been found. They had no known children.
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | ABT 1305 |
|
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | dame de Croisilles |