[1] She was the daughter of Lady Margaret Caroline Leveson-Gower and Frederick Howard, 5th Earl of Carlisle, who served as Treasurer of the Household and First Lord of Trade.

[3] On 22 April 1799, Lady Elizabeth married John Manners, 5th Duke of Rutland, who had succeeded to his father's dukedom in 1787 when he was still a child.

Together, they were the parents of ten children:[4] Duchess of Rutland died, aged 45, of "an inflammation of the chest", and was buried in the family vault at Bottesford.

The Gentleman's Magazine commented that "What many individuals would have required a century to execute, her perseverance in a few years achieved.

"[7] Elizabeth also made improvements to Cheveley Park, where her husband's famous stud operated,[10] and influenced the building of York House on the Mall on behalf of Prince Frederick, Duke of York and Albany, the brother of King George IV, with whom she had an intimate relationship.