House of Heathcote-Drummond-Willoughby
Barons Willoughby de Eresby in the Peerage of England (1313, abeyance terminated 1871)
Earls of Ancaster in the Peerage of the United Kingdom (1892-1983)
Barons Aveland in the Peerage of the United Kingdom (1856, from 1867 to 1983)
24th and 28th Baroness Willoughby de Eresby
- Clementina Elizabeth Drummond-Willoughby, (1809–1888) 24th BaronessWilloughby de Eresby, Joint Hereditary Lord Great Chamberlain, daughter of Peter Robert Drummond-Burrell, 22nd Baron Willoughby de Eresby. Married Sir Gilbert John Heathcote, 1st Baron Aveland. She and her husband changed their name and arms to Heathcote-Drummond-Willoughby by Royal Licence in 1872.
Earls of Ancaster
- Gilbert Henry Heathcote-Drummond-Willoughby, (1830–1910) 1st Earl of Ancaster, 2nd Baron Aveland, 25th Baron Willoughby de Eresby. Joint Hereditary Lord Great Chamberlain.
- Gilbert Heathcote-Drummond-Willoughby, (1867–1951) 2nd Earl of Ancaster, 26th Baron Willoughby de Eresby. Joint Hereditary Lord Great Chamberlain.
- Gilbert James Heathcote-Drummond-Willoughby, (1907–1983) 3rd Earl of Ancaster, 27th Baron Willoughby de Eresby. Joint Hereditary Lord Great Chamberlain.
- Jane Marie Heathcote-Drummond-Willoughby, (b. 1934) 28th Baroness Willoughby de Eresby, Joint Hereditary Lord Great Chamberlain, daughter of 3rd Earl of Ancaster, 27th Baron Willoughby de Eresby.
Heathcote of London in the Baronetage of Great Britain (1733)
Barons Aveland in the Peerage of the United Kingdom (1856-1983)
Heathcote of London
- Sir Gilbert Heathcote, 1st Baronet (1652–1733)
- Sir John Heathcote, 2nd Baronet (1689–1759)
- Sir Gilbert Heathcote, 3rd Baronet (d. 1785)
- Sir Gilbert Heathcote, 4th Baronet (1773–1851)
1st Baron Aveland
- Sir Gilbert John Heathcote, 5th Baronet (1795–1867) 1st Baron Aveland.
- Gilbert Henry Heathcote-Drummond-Willoughby, (1830–1910) 1st Earl of Ancaster, 2nd Baron Aveland, 25th Baron Willoughby de Eresby. Joint Hereditary Lord Great Chamberlain.
- Gilbert Heathcote-Drummond-Willoughby, (1867–1951) 2nd Earl of Ancaster, 26th Baron Willoughby de Eresby. Joint Hereditary Lord Great Chamberlain.
- Gilbert James Heathcote-Drummond-Willoughby, (1907–1983) 3rd Earl of Ancaster, 27th Baron Willoughby de Eresby. Joint Hereditary Lord Great Chamberlain.
- Sir Gilbert Simon Heathcote, 9th Baronet (1913–2014)
- Sir Mark Simon Robert Heathcote, 10th Baronet (b. 1941)
Heathcote of Hursley in the Baronetage of Great Britain (1733)
Heathcote of Hursley
- Sir William Heathcote, 1st Baronet (1693–1751), younger brother of Sir Gilbert Heathcote of London, 1st Baronet (1652–1733)
- Sir Thomas Heathcote, 2nd Baronet(1721–1787)
- Sir William Heathcote, 3rd Baronet (1746–1819)
- Sir Thomas Freeman-Heathcote, 4th Baronet (1769–1825)
- Sir William Heathcote, 5th Baronet (1801–1881)
- Sir William Perceval Heathcote, 6th Baronet (1826–1903)
- Sir William Arthur Heathcote, 7th Baronet (1853–1924)
- Sir Gilbert Redvers Heathcote, 8th Baronet (1854–1937)
- Sir Francis Cooke Caulfeild Heathcote, 9th Baronet (1868–1961)
- Sir Leonard Vyvyan Heathcote, 10th Baronet (1885–1963)
- Sir Michael Perryman Heathcote, 11th Baronet (1927–2007)
- Sir Timothy Gilbert Heathcote, 12th Baronet (b. 1957)