Eustachie was born about 1080, the daughter of unknown parents. The place is not known.
Her husband was Nivelon II de Fréteval, who she married in ABT 1096. The place has not been found. Their only known child was Ursion I (c1093-1143).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | ABT 1080 |
|