Conversation so far:
How many marriages did Lady Randolph Churchill have?
3
How did Lady Randolph Churchill second marriage end?
Jennie separated from George in 1912, and they were divorced in April 1914, whereupon, in a bit of irony, Cornwallis-West married Mrs. Campbell.
Did Lady Randolph Churchill have an affairs?
It was said that Queen Alexandra especially enjoyed her company, although Lady Randolph had been involved in an affair with her husband, the king, which was well known to Alexandra.
Who was Lady Randolph Churchill's second husband?
George Cornwallis-West
When did Lady Randolph Churchill get married for the third time?
1918
Did the marriage between Lady Randolph Churchhill and Montagu Porch last?
Yes

Question: When did she die?
Self-contained rewrite: When did Lady Randolph Churchill die?