Template:Dukes of Devonshire family tree

Dukes of Devonshire, Marquesses of Hartington, Earls of Burlington, Earls of Cork, Earls of Devonshire, and Earls of Orrery

William Cavendish
(c. 1505–1557)

Bess of Hardwick
(c. 1527–1608)

Baron Boyle of Youghal, 1616
Earl of Cork and Viscount Dungarvan, 1620

Earl of Devonshire (1st creation), 1603

Baron Cavendish, of Hardwicke in the County of Derby, 1605
Earl of Devonshire (2nd creation), 1618

Richard Boyle
(1566–1643)
1st Earl of Cork Viscount Dungarvan, Baron Boyle

Charles Blount
(1563–1606)
Earl of Devonshire, 8th Baron Mountjoy

William Cavendish
(1552–1626)
1st Earl of Devonshire, 1st Baron Cavendish of Hardwick

Charles Cavendish
(1553–1617)

Earldom of Devonshire (1st creation) extinct, 1606

William Cavendish
(1591–1628)
2nd Earl of Devonshire and Baron Cavendish of Hardwick

Dukes of Newcastle (1st creation)

Baron Clifford of Londesborough, 1644
Earl of Burlington (1st creation), 1664

Earl of Orrery, 1660

Richard Boyle
(1612–1698)
2nd Earl of Cork and Viscount Dungarvan, 1st Earl of Burlington and Baron Clifford

Elizabeth Clifford
2nd Baroness Clifford suo jure

Roger Boyle
(1621–1679)
1st Earl of Orrery

William Cavendish
(1617–1684)
3rd Earl of Devonshire, 3rd Baron Cavendish of Hardwick

Duke of Devonshire and Marquess of Hartington, 1694

Charles Boyle
(1639–1694)
styled Viscount Dungarvan, 3rd Baron Clifford

Roger Boyle
(1646–1682)
2nd Earl of Orrery

William Cavendish
(1640–1707)
1st Duke of Devonshire and Marquess of Hartington, 4th Earl of Devonshire and Baron Cavendish of Hardwick

Charles Boyle
(d. 1704)
3rd Earl of Cork and Viscount Dungarvan, 2nd Earl of Burlington, 4th Baron Clifford

Lionel Boyle
(1671–1703)
3rd Earl of Orrery

Charles Boyle
(1674–1731)
4th Earl of Orrery

William Cavendish
(1672–1729)
2nd Duke of Devonshire and Marquess of Hartington, 5th Earl of Devonshire

John Boyle
(1707–1762)
5th Earl of Cork, Earl of Orrery, and Viscount Dungarvan

Richard Boyle
(1694–1753)
4th Earl of Cork, 3rd Earl of Burlington, 5th Baron Clifford

William Cavendish
(1698–1755)
3rd Duke of Devonshire and Marquess of Hartington, 6th Earl of Devonshire

Earldom of Burlington (1st creation) extinct, 1753

Hamilton Boyle
(1729–1764)
6th Earl of Cork, Earl of Orrery, and Viscount Dungarvan

Edmund Boyle
(1707–1762)
7th Earl of Cork, Earl of Orrery, and Viscount Dungarvan

Charlotte Elizabeth Boyle
(1731–1754)
6th Baroness Clifford

William Cavendish
(1720–1764)
4th Duke of Devonshire and Marquess of Hartington, 7th Earl of Devonshire

Earl of Burlington (2nd creation) and Baron Cavendish of Keighley, in the county of York, 1831

Edmund Boyle
(1767–1856)
8th Earl of Cork, Earl of Orrery, and Viscount Dungarvan

William Cavendish
(1748–1811)
5th Duke of Devonshire and Marquess of Hartington, 8th Earl of Devonshire, 7th Baron Clifford

George Augustus Henry Cavendish
(1754–1834)
1st Earl of Burlington and Baron Cavendish of Keighley

Charles Boyle
(1800–1834)
styled Viscount Dungarvan

John Boyle (1803–1874)

Georgiana Dorothy Cavendish
(1783–1858)

William George Spencer Cavendish 🍌
(1790–1858)
6th Duke of Devonshire and Marquess of Hartington, 9th Earl of Devonshire, 8th Baron Clifford

William Cavendish
(1783–1812)

Barony Clifford abeyant, 1812

Blanche Howard
(1812–1840)

William Cavendish
(1808–1891)
7th Duke of Devonshire and Marquess of Hartington, 10th Earl of Devonshire, 2nd Earl of Burlington and Baron Cavendish of Keighley

Richard Edmund St Lawrence Boyle
(1829–1904)
9th Earl of Cork, Earl of Orrery, and Viscount Dungarvan

Gerald Edmund Boyle

Spencer Compton Cavendish
(1833–1908)
8th Duke of Devonshire and Marquess of Hartington, 11th Earl of Devonshire, 3rd Earl of Burlington and Baron Cavendish of Keighley

Edward Cavendish
(1838–1891)

Charles Spencer Canning Boyle
(1861–1925)
10th Earl of Cork, Earl of Orrery, and Viscount Dungarvan

Robert John Lascelles Boyle
(1864–1934)
11th Earl of Cork, Earl of Orrery, and Viscount Dungarvan

William Henry Dudley "Ginger" Boyle
(1873–1967)
12th Earl of Cork, Earl of Orrery, and Viscount Dungarvan

Victor Christian William Cavendish
(1868–1938)
9th Duke of Devonshire and Marquess of Hartington, 12th Earl of Devonshire, 4th Earl of Burlington and Baron Cavendish of Keighley

Edward William Spencer Cavendish
(1895–1950)
10th Duke of Devonshire and Marquess of Hartington, 13th Earl of Devonshire, 5th Earl of Burlington and Baron Cavendish of Keighley

Dorothy Evelyn Cavendish
(1900–1966)

Harold Macmillan
(1894–1986)

Patrick Reginald Boyle
(1910–1995)
13th Earl of Cork, Earl of Orrery, and Viscount Dungarvan

John William Boyle
(1916–2003)
14th Earl of Cork, Earl of Orrery, and Viscount Dungarvan

William John Robert Cavendish
(1917–1944)
styled Marquess of Hartington

Kathleen Kennedy
(1920–1948)

Andrew Robert Buxton Cavendish
(1920–2004)
11th Duke of Devonshire and Marquess of Hartington, 14th Earl of Devonshire, 6th Earl of Burlington and Baron Cavendish of Keighley

John Richard Boyle
(b. 1945)
15th Earl of Cork, Earl of Orrery, and Viscount Dungarvan

Peregrine Andrew Morny Cavendish
(b. 1944)
12th Duke of Devonshire and Marquess of Hartington, 15th Earl of Devonshire, 7th Earl of Burlington and Baron Cavendish of Keighley

Rory Jonathan Courtenay Boyle
(b. 1978)
styled Viscount Dungarvan

William Cavendish
(b. 1969)
styled Earl of Burlington

Heir apparent to the Earldoms of Cork and Orrery

Heir apparent to the Dukedom of Devonshire