Agnes was the daughter of unknown parents. The date and place of her birth have not been found.
She had four marriages/partners. Her first husband was Raoul II de Mauvoisin. They were married, but the date and place have not been found. They had no known children.
Her second husband was Guillaume II de Garlande. They were married, but the date and place have not been found. They had no known children.
Her third husband was Dreux III de Mello, who she married on AFT 23 MAR 1120. The place has not been found. They had no known children.
Her fourth husband was Pierre de Gonesse, who she married in ABT 1139. The place has not been found. They had no known children.
| Association | Relationship |
|---|---|
| Guillaume III de Garlande (seigneur de Livry) | son? |