The Peerage of the United Kingdom is one of the five peerages in the United Kingdom. It comprises most peerages created in the United Kingdom of Great Britain and Ireland after the Acts of Union in 1801, when it replaced the Peerage of Great Britain. New peers continued to be created in the Peerage of Ireland until 1898 (the last creation was the Barony of Curzon of Kedleston).
The House of Lords Act 1999 reformed the House of Lords. Until then, all peers of the United Kingdom were automatically members of the House of Lords. However, from that date, most of the hereditary peers ceased to be members, whereas the life peers retained their seats. All hereditary peers of the first creation (i.e. those for whom a peerage was originally created, as opposed to those who inherited a peerage), and all surviving hereditary peers who had served as Leader of the House of Lords, were offered a life peerage to allow them to continue to sit in the House, should they wish.
Peers in the Peerage of Scotland and Peerage of Ireland did not have an automatic seat in the House of Lords following the Acts of Union of 1707 and 1800, though the law permitted a limited number to be elected by their fellows to serve in the House of Lords as representative peers. Some peerages of the United Kingdom were created to get around this obstacle and allow certain Scottish and Irish peers to enjoy the automatic right to sit in the House of Lords.
Key
{| class="sortable wikitable"
| rowspan=6 align=right|Non-partisan
| style="background-color:#8800FF" |
| Royal Family/Household
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| style="background-color:#BB88FF" |
| Civil Service
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| style="background-color:#33CCCC" |
| Clergy
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| HM judiciary
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| Commonwealth judiciary
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| style="background: ; width: 1px" |
| Privy Counsellor of the United Kingdom/Ireland/Northern Ireland
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| rowspan=14 align=right|Partisan
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| Conservative Party
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| Independent politician
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| Irish Unionist Alliance
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| Labour Party
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| Liberal Party
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| Liberal Unionist Party
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| National Liberal Party
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| Scottish Unionist Party
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| Speaker of the House of Commons
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| Tory Party
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| Ulster Unionist Party
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| Whig Party
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| style="background-color:#003893" |
| Commonwealth politician
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| style="background-color:#000000" |
| Other politician
|}
Ranks
The ranks of the peerage are duke, marquess, earl, viscount, and baron.
The last non-royal dukedom was created in 1874,<!--excluding extra dukedoms created for people who already were dukes, like Argyll--> and the last marquessate was created in 1936. Creation of the remaining ranks, except baronies for life, mostly ceased once Harold Wilson's Labour government took office in 1964, and only thirteen (nine non-royal and four royal) people have been created hereditary peers since then. These were:
{| class="wikitable"
! Grantee
! Date of creation
! Title(s)
! Noted for
|-
| Reginald Manningham-Buller, The 1st Baron Dilhorne
| 7 December 1964
| Viscount Dilhorne
| Former Lord High Chancellor of Great Britain
|-
| Robert Grimston, Bt.
| 11 December 1964
| Baron Grimston of Westbury
| Former Member of Parliament
|-
| Frederick Erroll
| 19 December 1964 (extinct 2000)
| Baron Erroll of Hale
| Former Cabinet Minister
|-
| Robert Renwick, Bt.
| 23 December 1964
| Baron Renwick
| —
|-
| Michael Hughes-Young
| 31 December 1964
| Baron St Helens
| Former Member of Parliament
|-
| John Morrison
| 1 January 1965
| Baron Margadale
| Former Chairman of the 1922 Committee
|-
| William Whitelaw
| 16 June 1983 (extinct 1999)
| Viscount Whitelaw
| Former Home Secretary
|-
| George Thomas
| 11 July 1983 (extinct 1997)
| Viscount Tonypandy
| Former Speaker of the House of Commons
|-
| Harold Macmillan
| 24 February 1984
| Earl of Stockton<br/>Viscount Macmillan of Ovenden
| Former Prime Minister
<!-- |-
| Prince Andrew
| 23 July 1986
| Duke of York<br/>Earl of Inverness<br/>Baron Killyleagh
| Second son of Queen Elizabeth II on his wedding day -->
|-
| rowspan="2" | Andrew Mountbatten-Windsor<br/><small>Formerly Prince Andrew</small>
| 23 July 1986
| Duke of York<br/>Earl of Inverness<br/>Baron Killyleagh
| Second son of Queen Elizabeth II on his wedding day
|-
| colspan="3" | <small>In October 2025, amid controversy surrounding Andrew's ties to child sex offender Jeffrey Epstein, Buckingham Palace announced that Charles III had started a "formal process" to remove his brother's style, titles, and honours. Andrew's name was removed from the Roll of the Peerage the same day. This did not revoke his peerages, which can only be done by act of Parliament and not personally through the Sovereign's prerogatives, but means he is no longer entitled to any place in the orders of precedence derived from them and that he will cease to be addressed or referred to by any title derived from his peerages in public life, as well as official documents.</small>
|-
| rowspan="3" | Prince Edward
| 19 June 1999
| Earl of Wessex<br/>Viscount Severn
| Third son of Queen Elizabeth II on his wedding day
|-
| 10 March 2019
| Earl of Forfar
| On his 55th birthday (used by the Earl and his wife as their primary title when they are in Scotland)
|-
| colspan="3" | <small>On 10 March 2023 he was further created Duke of Edinburgh, the title held by his father during lifetime. This 2023 creation however is non-hereditary, i.e. 'for life' by his elder brother King Charles III.</small>
|-
|-
| Prince William
| 29 April 2011
| Duke of Cambridge<br/>Earl of Strathearn<br/>Baron Carrickfergus
| First son of King Charles III on his wedding day
|-
| Prince Harry
| 18 May 2018
| Duke of Sussex<br/>Earl of Dumbarton<br/>Baron Kilkeel
| Second son of King Charles III on his wedding day
|}
Dukes in the Peerage of the United Kingdom
{| class="wikitable sortable"
! Shield
! colspan=2 | Title
! Creation
! Grantee
! Reason
! Monarch
|-
| align=center | 25px<br/>25px
| style="background-color:" |
|
| 11 May 1814
| Arthur Wellesley, Marquess of Wellington
| Military Peerage–Army
| The Prince Regent<br/>on behalf of King George III
|-
| align=center | 25px<br/>25px
| style="background-color:" |
|
| 28 January 1833
| George Leveson-Gower, Marquess of Stafford
| —
| King William IV
|-
| align=center | 25px<br/>25px
| style="background-color:" |
|
| 27 February 1874
| Hugh Grosvenor, Marquess of Westminster
| —
| rowspan=5 | Queen Victoria
|-
| align=center | 25px<br/>25px
| style="background-color:" |
| style="background:#ADD8E6" |
| 13 January 1876
| Charles Gordon-Lennox, Duke of Richmond
| Incumbent cabinet minister
|-
| align=center | 25px<br/>25px
| style="background-color:#8800FF" |
|
| 24 May 1881
| Prince Leopold
| Currently suspended
|-
| align=center | 25px<br/>25px
| style="background-color:" |
| style="background:#7DF9FF" |
| 7 April 1892
| George Campbell, Duke of Argyll
| Former cabinet minister and father-in-law of Princess Louise daughter of Queen Victoria
|-
| align=center | 25px<br/>25px
| style="background-color:" |
|
| 24 April 1900
| Alexander Duff, Earl of Fife
| Son-in-law of the Prince of Wales (later King Edward VII)
|-
| align=center | 25px<br/>25px
| style="background-color:#8800FF" |
|
| 31 March 1928
| Prince Henry
| On his 28th birthday
| rowspan=2 | King George V
|-
| align=center | 25px<br/>25px
| style="background-color:#8800FF" |
|
| 12 October 1934
| Prince George
| In anticipation of his forthcoming marriage to Princess Marina of Greece and Denmark
|-
| align=center | 25px<br/>25px
| style="background-color:#8800FF" |
|
| 23 July 1986
| Prince Andrew
| On his wedding day to Sarah Ferguson. Currently suspended
| rowspan=3 | Queen Elizabeth II
|-
| align=center | 25px<br/>25px
| style="background-color:#8800FF" |
|
| 29 April 2011
| Prince William of Wales
| On his wedding day to Catherine Middleton
|-
| align=center | 25px<br/>25px
| style="background-color:#8800FF" |
|
| 18 May 2018
| Prince Harry of Wales
| On his wedding day to Meghan Markle
|-
| align=center |
| style="background-color:#8800FF" |
|
| 10 March 2023
|
| On his 59th birthday, (Title not hereditary, it will become extinct on his death)
| King Charles III
|}
Marquesses in the Peerage of the United Kingdom
{| class="wikitable sortable"
! Shield
! colspan=2 | Title
! Creation
! Grantee
! Reason
! Monarch
|-
| align=center |
| style="background-color:" |
|
| 4 February 1801
| Henry Cecil, Earl of Exeter
| —
| King George III
|-
| align=center |
| style="background-color:" |
|
| 7 September 1812
| Charles Compton, Earl of Northampton
| —
| rowspan=6 | The Prince Regent<br/>on behalf of King George III
|-
| align=center |
| style="background-color:" |
| data-sort-value="Marquess of Camden" |
| 7 September 1812
| John Pratt, Earl Camden
| Former Viceroy of Ireland
|-
| rowspan=2 align=center |
| rowspan=2 style="background-color:" |
| style="background:#ADD8E6" rowspan=2 |
| rowspan=2 | 3 October 1812
| colspan=2 | Duke of Wellington in the Peerage of the United Kingdom
|-
| Arthur Wellesley, Earl of Wellington
| Military Peerage–Army
|-
| align=center |
| style="background-color:" |
|
| 4 July 1815
| Henry Paget, Earl of Uxbridge
| Military Peerage–Army
|-
| align=center |
| style="background-color:#8800FF" |
|
| 22 November 1815
| George Cholmondeley, Earl of Cholmondeley
| Incumbent Lord Steward of the Household
|-
| align=center |
| style="background-color:" |
|
| 17 July 1821
| Charles Brudenell-Bruce, Earl of Ailesbury
| —
| rowspan=2 | King George IV
|-
| align=center |
| style="background-color:" |
|
| 30 June 1826
| Frederick Hervey, Earl of Bristol
| —
|-
| align=center |
| style="background-color:" |
|
| 10 September 1831
| Archibald Kennedy, Earl of Cassilis
| —
| rowspan=3 | King William IV
|-
| rowspan=2 align=center |
| rowspan=2 style="background-color:" |
| style="background:#ADD8E6" rowspan=2 |
| rowspan=2 | 13 September 1831
| colspan=2 | Duke of Westminster in the Peerage of the United Kingdom
|-
| Robert Grosvenor, Earl Grosvenor
| —
|-
| align=center |
| style="background-color:" |
|
| 25 June 1838
| Constantine Phipps, Earl of Mulgrave
| Incumbent Viceroy of Ireland
| rowspan=3 | Queen Victoria
|-
| align=center |
| style="background-color:" |
|
| 14 January 1876
| William Nevill, Earl of Abergavenny
| —
|-
| align=center |
| style="background-color:" |
|
| 22 August 1892
| Lawrence Dundas, Earl of Zetland
| Former Viceroy of Ireland
|-
| align=center |
| style="background-color:" |
|
| 27 October 1902
| John Hope, Earl of Hopetoun
| Incumbent Governor-General of Australia
| King Edward VII
|-
| align=center |
| style="background-color:" |
|
| 4 January 1916
| John Hamilton-Gordon, Earl of Aberdeen
| Former Governor General of Canada and former Viceroy of Ireland
| rowspan=3 | King George V
|-
| align=center |
| style="background-color:" |
|
| 7 November 1917
| Prince Louis of Battenberg
| He relinquished his German titles
|-
| align=center |
| style="background-color:" |
|
| 7 May 1926
| Rufus Isaacs, Earl of Reading
| Former Viceroy of India and former Lord Chief Justice of England
|}
Earls in the Peerage of the United Kingdom
{| class="wikitable sortable"
! Shield
! colspan=2 | Title
! Creation
! colspan=2 | Grantee
! Reason
! Monarch
|-
| align=center | 25px<br/>25px
| style="background-color:" |
|
| 21 April 1801
| colspan=2 |
| Former Lord High Chancellor of Great Britain
| rowspan=29 | King William IV
|-
| align=center |
| style="background-color:" |
| style="background:#7DF9FF" | Baron Kenlis
| 10 September 1831
| colspan=2 |
| —
|-
| align=center |
| style="background-color:" |
| style="background:#7DF9FF" | Baron Chaworth
| 10 September 1831
| colspan=2 |
| —
|-
| rowspan=2 align=center |
| rowspan=2 style="background-color:" |
| rowspan=2 style="background:#ADD8E6" | Baron Oakley
| rowspan=2 | 10 September 1831
| colspan=3 |
|-
| colspan=2 |
| Military Peerage–Navy
|-
| align=center |
| style="background-color:" |
| Baron Poltimore
| 10 September 1831
| colspan=2 |
| —
|-
| align=center |
| style="background-color:" |
| Baron Mostyn
| 10 September 1831
| colspan=2 |
| Former Member of Parliament for the Whig Party
|-
| rowspan=2 align=center |
| rowspan=2 style="background-color:" |
| rowspan=2 style="background:#7DF9FF" | Baron Templemore
| rowspan=2 | 10 September 1831
| colspan=3 |
|-
| colspan=2 |
| Former Member of Parliament for the Whig Party
|-
| align=center |
| style="background-color:" |
| Baron de Saumarez
| 15 September 1831
| colspan=2 |
| Military Peerage–Navy
|-
| rowspan=2 align=center |
| rowspan=2 style="background-color:" |
| rowspan=2 style="background:#ADD8E6" | Baron Stanley of Bickerstaffe
| rowspan=2 | 22 December 1832
| colspan=3 |
|-
| colspan=2 |
| —
|-
| align=center |
| style="background-color:#008800" |
| Baron Denman
| 28 March 1834
| style="background: ; width: 1px" |
|
| Incumbent Lord Chief Justice of the King's Bench
|-
| rowspan=2 align=center |
| rowspan=2 style="background-color:" |
| rowspan=2 style="background:#7DF9FF" | Baron Duncannon
| rowspan=2 | 19 July 1834
| colspan=3 |
|-
| colspan=2 |
| Incumbent Home Secretary
|-
| align=center |
| style="background-color:#008800" |
| Baron Abinger
| 12 January 1835
| style="background: ; width: 1px" |
|
| Incumbent Lord Chief Baron of the Exchequer
|-
| rowspan=2 align=center |
| rowspan=2 style="background-color:" |
| rowspan=2 style="background:#ADD8E6" | Baron De L'Isle and Dudley
| rowspan=2 | 13 January 1835
| colspan=3 |
|-
| colspan=2 |
| Former Member of Parliament for the Tory Party
|-
| align=center |
| style="background-color:" |
| Baron Ashburton
| 10 April 1835
| style="background: ; width: 1px" |
|
| rowspan="2" | Former cabinet minister
|-
| align=center |
| style="background-color:" |
| Baron Hatherton
| 11 May 1835
| style="background: ; width: 1px" |
|
|-
| rowspan=2 align=center |
| rowspan=2 style="background-color:" |
| rowspan=2 style="background:#ADD8E6" | Baron Strafford
| rowspan=2 | 12 May 1835
| colspan=3 |
|-
| style="background: ; width: 1px" |
|
| Military Peerage–Army
|-
| align=center |
| style="background-color:" |
| style="background:#7DF9FF" | Baron Worlingham
| 13 June 1835
| colspan=2 |
| —
|-
| rowspan=2 align=center |
| rowspan=2 style="background-color:" |
| rowspan=2 style="background:#ADD8E6" | Baron Cottenham
| rowspan=2 | 20 January 1836
| colspan=3 |
|-
| style="background: ; width: 1px" |
|
| Incumbent Lord High Chancellor of Great Britain
|-
| align=center |
| style="background-color:" |
| Baron Stratheden
| 22 January 1836
| colspan=2 |
| Wife of John Campbell
|-
| align=center |
| style="background-color:" |
| Baron Monk Bretton
| 4 November 1884
| style="background: ; width: 1px" |
|
| Former cabinet minister
|-
| align=center |
| style="background-color:" |
| Baron Northbourne
| 5 November 1884
| colspan=2 |
| —
|-
| align=center |
| style="background-color:" |
| style="background:#7DF9FF" | Baron Sudley
| 7 November 1884
| colspan=2 |
| —
|-
| align=center |
| style="background-color:" |
| style="background:#7DF9FF" | Baron Powerscourt
| 27 June 1885
| colspan=2 |
| —
|-
| align=center |
| style="background-color:" |
| style="background:#7DF9FF" | Baron Northington
| 28 June 1885
| colspan=2 |
| —
|-
| align=center |
| style="background-color:" |
| Baron Rothschild
| 29 June 1885
| colspan=2 |
| Former Member of Parliament for the Liberal Party
|-
| align=center |
| style="background-color:" |
| Baron Revelstoke
| 30 June 1885
| colspan=2 |
| —
|-
| align=center |
| style="background-color:" |
| Baron Monkswell
| 1 July 1885
| style="background: ; width: 1px" |
|
| Former cabinet minister
|-
| align=center |
| style="background-color:" |
| Baron Ashbourne
| 4 July 1885
| style="background: ; width: 1px" |
|
| Incumbent Lord High Chancellor of Ireland
|-
| align=center |
| style="background-color:" |
| Baron St Oswald
| 6 July 1885
| colspan=2 |
| Former Member of Parliament for the Conservative Party
|-
| rowspan=2 align=center |
| rowspan=2 style="background-color:#008800" |
| rowspan=2 style="background:#ADD8E6" | Baron Esher
| rowspan=2 | 24 July 1885
| colspan=3 |
|-
| style="background: ; width: 1px" |
|
| Incumbent Master of the Rolls
|-
| align=center |
| style="background-color:" |
| Baron Montagu of Beaulieu
| 29 December 1885
| colspan=2 |
| Former Member of Parliament for the Conservative Party
|-
| align=center |
| style="background-color:" |
| style="background:#7DF9FF" | Baron Elphinstone
| 30 December 1885
| colspan=2 |