Clementina Elizabeth Heathcote-Drummond-Willoughby, 24th Baroness Willoughby de Eresby (née Burrell-Drummond; 2 September 1809 – 13 November 1888), styled Lady Aveland from 1827–71, was a suo jure British baroness.
[1] She was born in Piccadilly, London, the elder daughter of Peter Drummond-Burrell, 22nd Baron Willoughby de Eresby (1782–1865) and Sarah Clementina Drummond (1786–1865), daughter of James Drummond, 1st Baron Perth.
Her father adopted the surname of Drummond in addition to that of Burrell by Royal Licence after their marriage in 1807.
On the death of her brother, Albyric Drummond-Willoughby, 23rd Baron Willoughby de Eresby, in 1871, the ancient Barony of Willoughby de Eresby fell into abeyance between her and her sister, Charlotte.
[5] Lady Willoughby married Sir Gilbert John Heathcote, later Baron Aveland, on 8 October 1827 at Drummond Castle.