Marguerite was the daughter of unknown parents. The date and place of her birth have not been found.
She had two marriages/partners. Her first husband was Denis de Saint-Omer. They were married, but the date and place have not been found. They had no known children.
Her second husband was Charles van Halewyn. They were married, but the date and place have not been found. They had no known children.
Note 1
Simon dit Drincham de Flandres & Marguerite Jeanne de Wissocq