On 3 May 1762, Caroline was created Baroness Holland of Holland in the Peerage of Great Britain. Her husband was created Baron Holland of Foxley less than a year later, on 17 April 1763. Caroline's spoiled sons, especially Stephen, the eldest, caused her much embarrassment and distress by gambling and falling into debt. She was already suffering from a mysterious and painful illness when her husband, who had suffered a stroke, died on 1 July 1774. She followed him 23 days later.