Margaret was the daughter of unknown parents. The date and place of her birth have not been found.
She had three marriages/partners. Her first husband was Walter Devereux. They were married, but the date and place have not been found. They had no known children.
Her second husband was Thomas Sidney. They were married, but the date and place have not been found. They had no known children.
Her third husband was sir Thomas Posthumous Hoby. They were married, but the date and place have not been found. They had no known children.