Billette was the daughter of unknown parents. The date and place of her birth have not been found.
Her husband was Archemand de Grolée. They were married, but the date and place have not been found. Their only known child was Helmorgie (?->1428).
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | dame d'Ay |