Mary was the daughter of unknown parents. The date and place of her birth have not been found.
She died in MAY 1843. The place is not known.
Her husband was William Henry Cavendish-Bentinck, who she married in 1803. The place has not been found. They had no known children.
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Death | MAY 1843 |
|
Note 1
daughter of Arthur Acheson, 1st Earl of Gosford