User:DBD/Peerage survey: Dukes

Prince of Wales

 * Prince: HRH The Prince of Wales (The Prince Charles)
 * Princess: HRH The Duchess of Cornwall (Camilla)
 * Heir-apparent & spouse: see 
 * Younger sons & spouses
 * of the current prince: HRH Prince Harry

Duke of Cornwall

 * See 

Duke of Norfolk

 * Peer: His Grace The Duke of Norfolk (Edward Fitzalan-Howard)
 * Spouse: Her Grace The Duchess of Norfolk (Georgina Fitzalan-Howard)
 * Heir-apparent: see 
 * Daughters
 * of the 16th Duke:
 * see 
 * Lady Mary Mumford DCVO
 * Lady Sarah Clutton
 * The Marchioness of Lothian; see 
 * of the 17th Duke:
 * The Countess of Balfour; see 
 * Lady Carina Frost (Lady Frost)
 * Marsha Fitzalan (Lady Marcia George)
 * of the current (18th) Duke:
 * Lady Rachel Fitzalan-Howard
 * Lady Isabel Fitzalan-Howard
 * Younger sons & spouses
 * of the 17th Duke:
 * Lord & Lady Gerald Fitzalan-Howard
 * of the current (18th) Duke:
 * Lord Thomas Fitzalan-Howard
 * Lord Philip Fitzalan-Howard

Duke of Somerset

 * Peer: His Grace The Duke of Somerset (John Seymour)
 * Spouse: Her Grace The Duchess of Somerset (Rose Seymour)
 * Heir-apparent & spouse: see 
 * Daughters
 * of the 18th Duke:
 * Lady Anne Seymour
 * of the current (19th) Duke:
 * Lady Sophia Seymour
 * Lady Henrietta Seymour
 * Younger sons & spouses
 * of the 18th Duke:
 * Lord & Lady Francis Seymour
 * of the current (19th) Duke:
 * Lord Charles Seymour

Duke of Richmond
* was Lady Settrington, may or may not have been Countess of March
 * Peer: His Grace The Duke of Richmond (Charles Gordon-Lennox)
 * Spouse: Her Grace The Duchess of Richmond (Susan Gordon-Lennox)
 * Heir-apparent & spouse: see 
 * Daughters
 * of the current (10th) Duke:
 * Lady Ellinor Gordon-Lennox
 * Lady Maria Handy
 * Lady Naomi Burke (Nimmy March)
 * Lady Louisa Collings
 * Younger sons & spouses
 * of the 9th Duke:
 * Lady Nicholas Gordon-Lennox

Duke of Grafton

 * Peer: His Grace The Duke of Grafton (Henry FitzRoy)
 * Spouse: Her Grace The Duchess of Grafton (Olivia FitzRoy)
 * Spouses of previous peers:
 * Dowager of the 11th Duke:
 * Fortune, Duchess of Grafton (Dame Fortune FitzRoy)
 * Heir-apparent: see 
 * Daughters
 * of the 10th Duke:
 * Lady Anne Mackenzie
 * of the 11th Duke:
 * Lady Henrietta St George
 * Lady Virginia Hill
 * Lady Rose Monson
 * Younger sons & spouses
 * of the 10th Duke:
 * Lady Edward FitzRoy
 * of the 11th Duke:
 * Lord & Lady Charles FitzRoy

Duke of Beaufort

 * Peer: His Grace The Duke of Beaufort (David Somerset)
 * Spouse: Her Grace The Duchess of Beaufort (Miranda Somerset)
 * Heir-apparent & spouse: see 
 * Daughters
 * of the current (11th) Duke:
 * Lady Anne Carr
 * Younger sons & spouses
 * of the current (11th) Duke:
 * Lord & Lady Edward Somerset
 * Lord John Somerset (div. Lady Cosima Vane-Tempest-Stewart)

Duke of St Albans

 * Peer: His Grace The Duke of St Albans (Murray Beauclerk)
 * Spouse: Her Grace The Duchess of St Albans (Gillian Beauclerk)
 * Ex-wives:
 * Cynthia, Duchess of St Albans
 * Spouses of previous peers:
 * Ex-wife of the 13th Duke:
 * Nathalie, Duchess of St Albans
 * Heir-apparent & spouse: see 
 * Daughters
 * of the 13th Duke:
 * Lady Caroline Blake
 * of the current (14th) Duke:
 * Lady Emma Smellie
 * Younger sons & spouses
 * of the 13th Duke:
 * Lord Peter Beauclerk (div. Beverly Bailey)
 * Lord James Beauclerk
 * Lord & Lady John Beauclerk (div. Caroline Wilkinson)

Duke of Leeds (extinct)

 * Family name: Osborne
 * Spouse(s) of previous peer(s):
 * Ex-wives of the 11th Duke:
 * Irma Howard (Mrs Frank Howard)
 * Audrey, Duchess of Leeds
 * Daughters
 * of the 11th Duke:
 * Lady Camilla Dempster

Duke of Bedford

 * Peer: His Grace The Duke of Bedford (Andrew Russell)
 * Spouse: Her Grace The Duchess of Bedford (Louise Russell)
 * Spouses of previous peers:
 * Dowager of the 14th Duke:
 * The Dowager Duchess of Bedford (Henrietta Russell)
 * Heir-apparent & spouse: see 
 * Daughters
 * of the 12th Duke:
 * Lady Daphne Russell
 * of the current (15th) Duke:
 * Lady Alexandra Russell
 * Younger sons & spouses
 * of the 13th Duke:
 * Lord & Lady Rudolf Russell
 * Lord Francis Russell (is his 1st wife Faith Ibrahim div or dec?; div 2 Sarah Clemence)
 * of the 14th Duke:
 * Lord & Lady Robin Russell
 * Lord & Lady James Russell

Duke of Devonshire

 * Peer: His Grace The Duke of Devonshire (Sir Peregrine Cavendish)
 * Spouse: Her Grace The Duchess of Devonshire (Amanda Cavendish)
 * Spouses of previous peers:
 * Dowager of the 11th Duke:
 * The Dowager Duchess of Devonshire (Deborah Cavendish)
 * Heir-apparent & spouse: see 
 * Daughters
 * of the 10th Duke:
 * Lady Elizabeth Cavendish
 * Lady Anne Tree
 * of the 11th Duke:
 * Lady Emma Tennant
 * Lady Sophia Topley
 * of the current (12th) Duke:
 * Lady Celina Carter
 * Lady Jasmine Cavendish

Duke of Marlborough

 * Peer: His Grace The Duke of Marlborough (John Spencer-Churchill)
 * Spouse: Her Grace The Duchess of Marlborough (Lily Spencer-Churchill)
 * Ex-wives:
 * Athina Livanos
 * Rosita, Duchess of Marlborough
 * Heir-apparent & spouse: see 
 * Daughters
 * of the 10th Duke:
 * Lady Caroline Waterhouse
 * Lady Rosemary Muir
 * of the current (11th) Duke:
 * Lady Henrietta Spencer-Churchill
 * Lady Alexandra Spencer-Churchill
 * Younger sons & spouses
 * of the 10th Duke:
 * Lord & Lady Charles Spencer-Churchill (div Gillian Spreckels Fuller)
 * of the current (11th) Duke:
 * Lord Edward Spencer-Churchill

Duke of Rutland

 * Peer: His Grace The Duke of Rutland (David Manners)
 * Spouse: Her Grace The Duchess of Rutland (Emma Manners)
 * Spouses of previous peers:
 * Dowager of the 10th Duke:
 * The Dowager Duchess of Rutland (Frances Manners)
 * Heir-apparent: see 
 * Daughters
 * of the 9th Duke:
 * Lady Ursula d'Abo
 * of the 10th Duke:
 * Lady Charlotte Manners
 * Lady Teresa Chipman
 * of the current (11th) Duke:
 * Lady Violet Manners
 * Lady Alice Manners
 * Lady Eliza Manners
 * Younger sons & spouses
 * of the 9th Duke:
 * Lord & Lady Roger Manners
 * of the 10th Duke:
 * Lord Edward Manners
 * of the current (11th) Duke:
 * Lord Hugo Manners

Duke of Rothesay

 * Peer: HRH The Prince Charles, Duke of Rothesay
 * Spouse: HRH The Duchess of Rothesay (Camilla)
 * Elder son & spouse: HRH The Earl & Countess of Strathearn (Elder son, but not heir-apparent)
 * Younger sons & spouses
 * of the current Duke: HRH Prince Harry

Duke of Hamilton and Brandon

 * Peer: His Grace The Duke of Hamilton and Brandon (Alexander Douglas-Hamilton)
 * Spouse: Her Grace The Duchess of Hamilton and Brandon (Sophie Douglas-Hamilton)
 * Spouses of previous peers:
 * Dowager of the 15th Duke:
 * Kay, Duchess of Hamilton and Brandon
 * Ex-wife of the 15th Duke:
 * Jill, Duchess of Hamilton and Brandon
 * Heir-apparent: see 
 * Daughters
 * of the 13th Duke:
 * Lady Jean Norton-Bell
 * Lady Margaret Drummond-Hay
 * of the 15th Duke:
 * Lady Eleanor Douglas-Hamilton
 * Lady Ann Douglas-Hamilton
 * Younger sons & spouses
 * of the 14th Duke:
 * see 
 * Lady Hugh Douglas-Hamilton (Lord Hugh div June Curtis)
 * Lord Patrick Douglas-Hamilton (div. Cecilia Usher)
 * Lord David Douglas-Hamilton
 * of the 15th Duke:
 * Lord John Douglas-Hamilton

Duke of Buccleuch

 * Peer: His Grace The Duke of Buccleuch (Sir Richard Scott)
 * Spouse: Her Grace The Duchess of Buccleuch (Elizabeth Scott)
 * Heir-apparent: see 
 * Daughters
 * of the 8th Duke:
 * The Dowager Duchess of Northumberland; see 
 * of the 9th Duke:
 * Countess Bernard de Castellane
 * of the current (10th) Duke:
 * Lady Louisa Trotter
 * Lady Amabel Scott
 * Younger sons & spouses
 * of the 9th Duke:
 * Lord & Lady William Montagu-Douglas-Scott
 * Lord & Lady Damian Montagu-Douglas-Scott
 * of the current (10th) Duke:
 * Lord Charles Scott

Duke of Queensberry

 * See .

Duke of Lennox

 * See .

Duke of Argyll

 * Peer: The Duke of Argyll (Torquhil Campbell)
 * Spouse: The Duchess of Argyll (Eleanor Campbell)
 * Spouses of previous peers:
 * Dowager of the 12th Duke:
 * The Dowager Duchess of Argyll (Iona Campbell)
 * Heir-apparent: see 
 * Daughters
 * of the 12th Duke:
 * Lady Louise Burrell
 * of the current (13th) Duke:
 * Lady Charlotte Campbell
 * Younger sons & spouses
 * of the 11th Duke:
 * Lord Colin Campbell (div Lady Colin Campbell (née Georgie Ziadie))
 * of the current (13th) Duke:
 * Lord Rory Campbell

Duke of Atholl

 * Peer: His Grace The Duke of Atholl (Bruce Murray)
 * Spouse: Her Grace The Duchess of Atholl (Lynne Murray)
 * Spouses of previous peers:
 * Dowager of the 11th Duke:
 * Margaret, Duchess of Atholl
 * Heir-apparent: see 
 * Daughters
 * of the 11th Duke:
 * Lady Jennifer Glodek
 * of the current (12th) Duke:
 * Lady Nicole Murray
 * Younger sons & spouses
 * of the 11th Duke:
 * Lord & Lady Craig Murray
 * of the current (12th) Duke:
 * Lord David Murray

Duke of Montrose

 * Peer: His Grace The Duke of Montrose (James Graham)
 * Spouse: Her Grace The Duchess of Montrose (Catherine Graham)
 * Spouses of previous peers:
 * Dowager of the 7th Duke:
 * The Dowager Duchess of Montrose (Susan Graham)
 * Heir-apparent: ''see
 * Daughters
 * of the 7th Duke:
 * Lady Fiona Hannon
 * Lady Kirstie Saggers
 * Lady Lilias Bell
 * of the current (8th) Duke:
 * Lady Hermione Graham
 * Younger sons & spouses
 * of the 6th Duke:
 * Lady Ronald Graham
 * of the 7th Duke:
 * Lord & Lady Donald Graham
 * Lord & Lady Calum Graham (one of whom is dead)
 * of the current (8th) Duke:
 * Lord Ronald Graham

Duke of Roxburghe

 * Peer: His Grace The Duke of Roxburghe (Guy Innes-Ker)
 * Spouse: Her Grace The Duchess of Roxburghe (Virginia Innes-Ker)
 * Ex-wife: Jane Dawnay (Mrs Edward Dawnay)
 * Heir-apparent: see 
 * Daughters
 * of the present Duke:
 * The Viscountess Grimston; see 
 * Lady Isabella Innes-Ker
 * Younger sons & spouses:
 * of the 9th Duke:
 * Lord & Lady Robert Innes-Ker
 * of the present Duke:
 * Lord Ted Innes-Ker
 * Lord George Innes-Ker

Duke of Brandon

 * See .

Duke of Portland (extinct)

 * Family name: Cavendish-Bentinck
 * Daughters
 * of the 9th Duke:
 * Lady Mary Georgiades
 * Younger sons & spouses
 * of the 9th Duke:
 * (late Lord William Cavendish-Bentinck div 1 Patricia Collins div 2 Inger Grantzau-Christensen div 3 Barbara Lygon)

Duke of Manchester

 * Peer: His Grace The Duke of Manchester (Alexander Montagu)
 * Spouse: Her Grace The Duchess of Manchester (Laura Montagu)
 * Ex-wife: Wendy, Duchess of Manchester
 * Spouses of previous peers:
 * Dowager of the 10th Duke:
 * The Dowager Duchess of Manchester (Elizabeth Montagu)
 * Ex-wives of the 12th Duke:
 * Diane, Duchess of Manchester
 * Anne-Louise, Duchess of Manchester
 * Heir-apparent/presumptive: unclear: or Lord Kimble Montagu
 * Daughters
 * of the 12th Duke:
 * Lady Emma Hodgkinson
 * of the current (13th) Duke:
 * Lady Ashley Montagu
 * Younger sons & spouses
 * of the 9th Duke:
 * (late Lord Edward Montagu div 1 Norah Potter 2 Dorothy Peters 4 Cora Kellie, Baroness Kelly 5 Roberta Joughlin)
 * of the 10th Duke:
 * Mary, Lady Angus Montagu (ex-wife of the 12th Duke)
 * of the 12th Duke:
 * Lord & Lady Kimble Montagu (Lord Kimble might be the heir-presumptive)

Duke of Newcastle (extinct)

 * Family name: Pelham-Clinton-Hope
 * Spouses of previous peers:
 * Dowager of the 9th Duke:
 * The Duchess of Newcastle (Sally Pelham-Clinton-Hope)
 * Daughters
 * of the 9th Duke:
 * Lady Patricia Hope
 * Lady Kathleen Pelham-Clinton-Hope

Duke of Northumberland

 * Peer: His Grace The Duke of Northumberland (Ralph Percy)
 * Spouse: Her Grace The Duchess of Northumberland (Isobel Percy)
 * Heir-apparent: see 
 * Daughters
 * of the 10th Duke:
 * Countess Pierre de Cabarrus
 * Lady Victoria Cuthbert
 * Lady Julia Harvey
 * of the current (12th) Duke:
 * Lady Katie Valentine
 * Lady Melissa van Straubenzee
 * Younger sons & spouses
 * of the 8th Duke:
 * Lady Richard Percy
 * Lady Geoffrey Percy
 * of the 10th Duke:
 * Lord & Lady James Percy
 * of the current (12th) Duke:
 * Lord Max Percy

Duke of Leinster

 * Peer: His Grace The Duke of Leinster (Maurice FitzGerald)
 * Spouse: Her Grace The Duchess of Leinster (Fiona FitzGerald)
 * Spouses of previous peers:
 * Ex-wife of the 8th Duke:
 * Joane Macalpine-Downie (Mrs Archibald Macalpine-Downie)
 * Dowager of the 8th Duke:
 * The Dowager Duchess of Leinster (Anne FitzGerald)
 * Heir-presumptive & spouse: Lord & Lady John FitzGerald (younger brother)
 * Daughters
 * of the 8th Duke:
 * Lady Rosemary FitzGerald
 * Lady Nesta Tirard
 * of the current (9th) Duke:
 * Lady Francesca Thompstone
 * Lady Pollyanna FitzGerald
 * Younger sons & spouses
 * of the 8th Duke:
 * Lord & Lady John FitzGerald (heir-presumptive)

Duke of Wellington

 * Peer: His Grace The Duke of Wellington (Sir Arthur Wellesley)
 * Heir-apparent & spouse: see 
 * Daughters
 * of the 7th Duke:
 * Lady Elizabeth Clyde
 * of the current (8th) Duke:
 * Lady Jane Wellesley
 * Younger sons & spouses
 * of the current (8th) Duke:
 * Lord Richard Wellesley (div Joanna Sumner)
 * Lord & Lady John Wellesley
 * Lord & Lady James Wellesley (div Laura Wedge)

Duke of Sutherland

 * Peer: His Grace The Duke of Sutherland (Francis Egerton)
 * Spouse: Her Grace The Duchess of Sutherland (Victoria Egerton)
 * Spouses of previous peers:
 * Dowager of the 6th Duke:
 * Evelyn, Duchess of Sutherland
 * Heir-apparent & spouse: see 
 * Younger sons & spouses
 * of the current (7th) Duke: Lord & Lady Henry Egerton

Duke of Abercorn

 * Peer: His Grace The Duke of Abercorn (Sir James Hamilton)
 * Spouse: Her Grace The Duchess of Abercorn (Alexandra Hamilton)
 * Heir-apparent & spouse: ''see
 * Daughters
 * of the 4th Duke:
 * Lady Moyra Campbell
 * of the current (5th) Duke:
 * Lady Sophia Loyd
 * Younger sons & spouses
 * of the 4th Duke:
 * Lord & Lady Anthony Hamilton
 * of the current (5th) Duke:
 * Lord & Lady Nicholas Hamilton

Duke of Westminster

 * Peer: His Grace The Duke of Westminster (Sir Gerald Grosvenor)
 * Spouse: Her Grace The Duchess of Westminster (Natalia Grosvenor)
 * Heir-apparent: see 
 * Daughters
 * of the 5th Duke:
 * Leonora, Countess of Lichfield
 * Lady Jane Dawnay
 * of the current (6th) Duke:
 * Lady Tamara van Cutsem
 * Lady Edwina Snow
 * Lady Viola Grosvenor

Duke of Gordon

 * See .

Duke of Argyll (UK)

 * See (Sc).

Duke of Fife

 * Peer: His Grace The Duke of Fife (James Carnegie)
 * Spouses of previous peers:
 * Ex-wife of the current (3rd) Duke:
 * Caroline, Lady Worsley
 * Heir-apparent & spouse: see 
 * Daughters
 * of the current (3rd) Duke:
 * Lady Alexandra Etherington

Duke of York (seventh creation; extinct)

 * Family name: Royal family.
 * Daughters
 * of the 1st Duke:
 * Her Majesty The Queen (Elizabeth II)

Duke of Gloucester

 * Peer: HRH The Duke of Gloucester (Prince Richard)
 * Spouse: HRH The Duchess of Gloucester (Dame Birgitte)
 * Heir-apparent & spouse: see 
 * Daughters
 * of the current (2nd) Duke:
 * Lady Davina Lewis
 * Lady Rose Gilman

Duke of Kent

 * Peer: HRH The Duke of Kent (Prince Edward)
 * Spouse: HRH The Duchess of Kent (Dame Katharine Kent)
 * Heir-apparent & spouse: see 
 * Daughters
 * of the 1st Duke:
 * HRH Princess Alexandra, The Hon Lady Ogilvy
 * of the current (2nd) Duke:
 * Lady Helen Taylor
 * Younger sons & spouses
 * of the 1st Duke:
 * TRH Prince & Princess Michael of Kent
 * of the current (2nd) Duke:
 * Lord & Lady Nicholas Windsor

Duke of Edinburgh

 * Peer: HRH The Duke of Edinburgh (The Prince Philip)
 * Spouse: Her Majesty The Queen (Elizabeth II)
 * Heir-apparent & spouse: see 
 * Daughters
 * of the current (1st) Duke:
 * HRH The Princess Royal
 * Younger sons & spouses
 * of the current (1st) Duke:
 * see 
 * see 

Duke of York (eighth creation)

 * Peer: HRH The Duke of York (The Prince Andrew)
 * Spouses of previous peers:
 * Ex-wife of the current (1st) Duke:
 * Sarah, Duchess of York (Sarah Ferguson)
 * Daughters
 * of the current (1st) Duke:
 * HRH Princess Beatrice of York
 * HRH Princess Eugenie of York

Duke of Cambridge

 * Peer: HRH The Duke of Cambridge (Prince William)
 * Spouse: HRH The Duchess of Cambridge (Catherine)
 * Heir-apparent: HRH Prince George of Cambridge

Earl of Arundel

 * Courtesy peer: The Earl of Arundel (Henry Arundel/Henry Fitzalan-Howard, heir-apparent to the )

Lord Seymour

 * Courtesy peer: The Lord Seymour (Sebastian Seymour, heir-apparent to the )
 * Spouse: The Lady Seymour (Arlette Seymour)

Earl of March & Kinrara

 * Courtesy peer: The Earl of March & Kinrara (Charles Gordon-Lennox, Master of Lennox, heir-apparent to the )
 * Spouse: The Countess of March & Kinrara
 * Ex-wife of the current Earl: Sally, Countess of March and Kinrara
 * Eldest son: see 
 * Daughters
 * of the current Earl:
 * Lady Atty Gordon-Lennox
 * Lady Eloise Gordon-Lennox
 * Younger sons & spouses
 * of the current Earl:
 * Hon William Gordon-Lennox
 * Hon Frederick Gordon-Lennox

Earl of Euston

 * Courtesy peer: The Earl of Euston (Alfred FitzRoy, heir-apparent to the )
 * Spouses of previous peers:
 * Dowager of James, Earl of Euston (father of the current (12th) Duke):
 * Clare, Countess of Euston

Marquess of Worcester

 * Courtesy peer: The Marquess of Worchester (Henry Somerset, heir-apparent to the )
 * Spouse: The Marchioness of Worchester (Tracy Louise Somerset)
 * Elder son & spouse: see 
 * Daughters
 * of the current Marquess:
 * Lady Bella Worcester
 * Younger sons & spouses
 * of the current Marquess:
 * Lord Xan Worcester

Earl of Burford

 * Courtesy peer: The Earl of Burford (Charles Beauclerk, heir-apparent to the )
 * Ex-wife of the current Earl: Louise Robey
 * Spouses of previous peers:
 * Ex-wife of the current (14th) Duke:
 * Rosemary, Viscountess Exmouth; see 
 * Only son: see 

Marquess of Tavistock

 * Courtesy peer: The Marquess of Tavistock (Henry Russell, heir-apparent of the )

Earl of Burlington

 * Courtesy peer: The Earl of Burlington (Bill Burlington, heir-apparent of the )
 * Spouse: The Countess of Burlington (Laura Burlington)
 * Only son: see 
 * Daughters
 * of the current Earl:
 * Lady Maud Cavendish
 * nb: the heir-apparent of the Duke of Devonshire is usually Marquess of Hartington.

Marquess of Blandford

 * Courtesy peer: The Marquess of Blandford (Jamie Blandford, heir-apparent to the )
 * Spouse: The Marchioness of Blandford (Edla Blandford)
 * Ex-wife of the current Marquess:
 * Becky, Marchioness of Blandford (Rebecca Few-Brown)
 * Elder son: see 
 * Daughters
 * of the current Marquess:
 * Lady Araminta Spencer-Churchill
 * Younger sons & spouses
 * of the current Marquess:
 * Lord Caspar Spencer-Churchill

Marquess of Granby

 * Courtesy peer: The Marquess of Granby (Charles Manners, heir-apparent to the )

Marquess of Douglas

 * Courtesy peer: The Marquess of Douglas (Douglas Douglas-Hamilton, Master of #Hamilton)

Earl of Dalkeith

 * Courtesy peer: The Earl of Dalkeith (Walter Scott, Master of #Buccleuch)

Marquess of Lorne

 * Courtesy peer: The Marquess of Lorne (Archie Campbell, Master of #Argyll)

Marquess of Tullibardine

 * Courtesy peer: The Marquess of Tullibardine (Michael Murray, Master of #Atholl)

Marquess of Graham

 * Courtesy peer: The Marquess of Graham (James Graham, Master of #Montrose)

Marquess of Bowmont

 * Courtesy peer: The Marquess of Bowmont (Charlie Innes-Ker, Master of #Roxburghe)
 * Ex-wife of the current Marquess: Charlotte, Marchioness of Bowmont (née Hon Charlotte Aitken)

Viscount Mandeville
Lord Alexander Montagu is the only son of the, but is born of a bigamous marriage. Either he is his father's heir (and therefore the Viscount Mandeville) because the law recognises children of bigamous marriages as legitimate, or he is not the heir because his parents "weren't married."

Earl Percy

 * Courtesy peer: The Earl Percy (George Percy, heir-apparent to the )

Marquess of Kildare
The 's only son died before his grandfather.

Marquess of Douro

 * Courtesy peer: The Marquess of Douro (Charles Wellesley, heir-apparent to the )
 * Spouse: The Marchioness of Douro (Antonia Wellesley, née Princess Antonia of Prussia)
 * Elder son: see 
 * Daughters
 * of the current Marquess:
 * Lady Honor Montagu
 * Lady Mary Wellesley
 * Lady Charlotte Wellesley
 * Younger sons
 * of the current Marquess:
 * Lord Frederick Wellesley

Marquess of Stafford

 * Courtesy peer: The Marquess of Stafford (James Egerton, heir-apparent to the )
 * Spouse: The Marchioness of Stafford (Barbara Egerton)
 * Daughters
 * of the current Marquess:
 * Lady Isabelle Egerton
 * Lady Louisa Egerton
 * Lady Violet Egerton

Marquess of Hamilton

 * Courtesy peer: The Marquess of Hamilton (James Hamilton, heir-apparent )
 * Spouse: The Marchioness of Hamilton (Tanya Hamilton)
 * Elder son: see 
 * Younger sons
 * of the current Marquess:
 * Lord Claud Hamilton

Earl Grosvenor

 * Courtesy peer: The Earl Grosvenor (Hugh Grosvenor, heir-apparent to the )

Earl of Southesk

 * Courtesy peer: The Earl of Southesk (David Carnegie, heir-apparent to the )
 * Spouse: The Countess of Southesk (Caroline Carnegie)
 * Elder son: see 
 * Younger sons
 * of the current Earl:
 * Hon George Carnegie
 * Hon Hugh Carnegie

Earl of Ulster

 * Courtesy peer: The Earl of Ulster (Alexander Windsor, heir-apparent to the )
 * Spouse: The Countess of Ulster (Claire Windsor/Booth)
 * Only son: see 
 * Daughters
 * of the current Earl:
 * Lady Cosima Windsor

Earl of St Andrews

 * Courtesy peer: The Earl of St Andrews (George Windsor, heir-apparent to the )
 * Spouse: The Countess of St Andrews (Sylvana Windsor)
 * Only son: see 
 * Daughters
 * of the current Earl:
 * Lady Marina Windsor
 * Lady Amelia Windsor

Earl of Merioneth
A courtesy title for the 's heir-apparent has never been required, since that heir-apparent was born a prince and is now the.

Earl of Inverness
The has never had any sons; they'd've been princes anyway. The Duke has on occasion used the title in Scotland.

Earl of Strathearn
A courtesy title for the 's heir-apparent has never been required, since that heir-apparent was born a prince. The title is used by the Duke and Duchess when in Scotland, where they are TRH The Earl and Countess of Strathearn.

Lord Maltravers
The courtesy title Lord Maltravers is used for the eldest son of the, being second heir to the.

Lord Settrington

 * Courtesy peer: The Lord Settrington (Charlie Gordon-Lennox, son of the )

Viscount Ipswich
The courtesy title Viscount Ipswich is used for the eldest son of the, being second heir to the.

Earl of Glamorgan

 * Courtesy peer: The Earl of Glamorgan (Bobby Glamorgan, son of the )

Lord Vere of Hanworth

 * Courtesy peer: The Lord Vere of Hanworth (James Beauclerk, son of the )

Lord Howland
When the has a son, the courtesy title Lord Howland is available for the second heir to the.

Lord Cavendish

 * Courtesy peer: The Lord Cavendish (James Cavendish, son of the )

Earl of Sunderland

 * Courtesy peer: The Earl of Sunderland (George Spencer-Churchill, son of the )

Lord Haddon/Roos
The courtesy titles Lord Roos and Lord Haddon are used alternately for the eldest son of the, being second heir to the.

Earl of Angus
The courtesy title Earl of Angus is used for the Master of Douglas (eldest son of the ), being second heir to the.

Lord Eskdaill
The courtesy title Lord Eskdaill is used for the Master of Dalkeith (eldest son of the ), being second heir to the.

Earl of Campbell
The courtesy title Earl of Campbell is used for the Master of Lorne (eldest son of the ), being second heir to the.

Earl of Strathtay
The courtesy title Earl of Strathtay is used for the Master of Tullibardine (eldest son of the ), being second heir to the.

Earl of Kincardine
The courtesy title Earl of Kincardine is used for the Master of Graham (eldest son of the ), being second heir to the.

Earl of Kelso
The courtesy title Earl of Kelso is used for the Master of Bowmont (eldest son of the ), being second heir to the.

Lord Kimbolton
The courtesy title Lord Kimbolton is used for the eldest son of the, being second heir to the.

Lord Lovaine
The courtesy title Lord Lovaine is used for the eldest son of the, being second heir to the.

Earl of Offaly
The courtesy title Earl of Offaly is used for the eldest son of the, being second heir to the.

Earl of Mornington

 * Courtesy peer: The Earl of Mornington (Arthur Wellesley, son of the )
 * Spouse: The Countess of Mornington (Jemma Wellesley)
 * Only son: see 
 * Daughters
 * of the current Earl:
 * Lady Mae Wellesley

Earl Gower
The courtesy title Earl Gower is used for the eldest son of the, being second heir to the.

Viscount Strabane

 * Courtesy peer: The Viscount Strabane (Alfred Hamilton, son of the )

Viscount Belgrave
The courtesy title Viscount Belgrave is used for the eldest son of the, being second heir to the.

Lord Carnegie

 * Courtesy peer: The Lord Carnegie (Charles Carnegie, son of the )

Lord Culloden

 * Courtesy peer: The Lord Culloden (Xan Windsor, son of the )

Lord Downpatrick

 * Courtesy peer: The Lord Downpatrick (Edward Windsor, son of the )

Lord Greenwich
The second-in-line to the was born a prince and is now the.

Lord Killyleagh
There are no heirs to the ; if he had a grandson in the male line, he would be Lord Killyleagh.

Lord Carrickfergus
If the had a grandson in the direct male line within this reign, he would be Lord Carrickfergus.

Viscount Grosmont
The courtesy title Viscount Grosmont is used for the eldest son of the, being third heir to the.

Lord Cavendish
In the normal course of events, Lord Cavendish would be the third heir to the.

Lord Churchill
The courtesy title Lord Churchill is used for the eldest son of the, being third heir to the.

Lord Abernethy
The courtesy title Lord Abernethy is used for the eldest son of the, being third heir to the.

Master of Eskdaill
The legal title Master of Eskdaill would belong to the eldest son of the, being third heir to the.

Viscount Lochaw
The courtesy title Viscount Lochaw is used for the eldest son of the, being third heir to the.

Viscount Balquhidder
The courtesy title Viscount Balquhidder is used for the eldest son of the, being third heir to the.

Viscount Dundaff
The courtesy title Viscount Dundaff is used for the eldest son of the, being third heir to the.

Viscount Broxmouth
The courtesy title Viscount Broxmouth is used for the eldest son of the, being third heir to the.

Viscount Leinster
The courtesy title Viscount Leinster is used for the eldest son of the, being third heir to the.

Viscount Wellesley

 * Courtesy peer: The Viscount Wellesley (Arthur Wellesley, son of the )

Viscount Trentham
The courtesy title Viscount Trentham is used for the eldest son of the, being third heir to the.

Master of Carnegie
The legal title Master of Carnegie would belong to the eldest son of the, being third heir to the.