She wrote mainly historical and Gothic romances in profusion, counting as Britain's tenth most productive novelist in the 1800–1829 period.
[1] Her didactic novels were aimed mainly at younger female readers.
A scholar notes of The Age We Live In (1809) and Runnemede (1825) (and by implication of the others) that they are didactic novels aimed at younger female readers, for it was, in Stanhope's words, "requisite to pamper the insatiate palate of romance-readers; else would the page be cast aside, and the poor author stigmatized with dullness and insipidity."
Her characters maintain a balance of feminine delicacy and strength of mind.
No evidence other than dates can identify her with Louisa Grenville (died 1829), second wife of Charles Stanhope, 3rd Earl Stanhope, from whom she separated in 1806, receiving a maintenance payment from him of £1500 a year.