Question: What is the date of death of Harriet Bury, Countess Of Charleville's mother?
Sentence (from "Lady Charlotte Bury"): Lady Charlotte Susan Maria Bury (née Campbell; 28 January 1775 – 1 April 1861) was an English novelist, who is chiefly remembered in connection with a "Diary illustrative of the Times of George IV" (1838).
Relevant evidence: Yes