Agnès was born about 1045, the daughter of unknown parents. The place is not known.
Her husband was Bellay III de Montreuil, who she married in ABT 1060. The place has not been found. They had no known children.
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | ABT 1045 |
|
Note 1