# Monmouthshire (UK Parliament constituency)

Monmouthshire (Welsh: Sir Fynwy) is a constituency of the House of Commons in the UK Parliament, and was first contested at the 2024 general election, following the 2023 review of Westminster constituencies. Its current MP is Catherine Fookes, a member of the Labour Party.
It previously existed as a county constituency of the House of Commons of the Parliament of England from 1536 until 1707, of the Parliament of Great Britain from 1707 to 1801, and of the Parliament of the United Kingdom from 1801 to 1885. It elected two Members of Parliament (MPs).
In 1885 the Monmouthshire constituency was divided to create North Monmouthshire, South Monmouthshire and West Monmouthshire.

## Boundaries

The historic Monmouthshire constituency covered the county of Monmouth, except that from 1832 there was a borough constituency, Monmouth Boroughs, within the county.
The constituency was re-established as part of the 2023 review for the 2024 general election under the June 2023 final proposals of the Boundary Commission for Wales. The boundaries were defined as being coterminous with the unitary authority of the County of Monmouthshire.
It was created from the abolished constituency of Monmouth (excluding the small part in Torfaen County Borough) expanded to include those parts of Monmouthshire County previously in the Newport East constituency, including Caldicot and Magor.

## Members of Parliament
### MPs 1542–1885

| Year | First member | Second member |
| 1542 | No names known | No names known |
| 1545 | Walter Herbert | Charles Herbert |
| 1547 | Sir Thomas Morgan | William Herbert |
| 1553 (Mar) | |
| 1553 (Oct) | Sir Charles Herbert | Thomas Somerset |
| 1554 (Apr) | Thomas Herbert | James Gunter |
| 1554 (Nov) | Thomas Somerset | David Lewis |
| 1555 | William Herbert | William Morgan |
| 1558 | Francis Somerset | William Morgan |
| 1559 (Jan) | William Morgan I | Thomas Herbert |
| 1562–1563 | Matthew Herbert | George Herbert |
| 1571 | Charles Somerset | William Morgan |
| 1572 (May) | Charles Somerset | Henry Herbert |
| 1584 (Sep) | Sir William Herbert | Edward Morgan |
| 1586 (Sep) | Sir William Herbert | Edward Morgan |
| 1588 (Oct) | Thomas Morgan II | William John Proger |
| 1593 | Sir William Herbert (died in office, 1593) | Edward Kemeys |
| 1597 (Sep) | Henry Herbert | John Arnold |
| 1601 (Oct) | Thomas Somerset | Henry Morgan |
| 1604 | Thomas Somerset | Sir John Herbert |
| 1614 | Walter Montagu | William Jones |
| 1621 | Sir Edmund Morgan | Charles Williams |
| 1624 | Robert Viscount Lisle | Sir William Morgan |
| 1625 | Robert Viscount Lisle | Sir William Morgan |
| 1626 | Nicholas Arnold | William Herbert |
| 1628 | Nicholas Arnold | Nicholas Kemeys |
| 1629–1640 | No Parliaments convened | No Parliaments convened |
| Apr 1640 | William Morgan | Walter Rumsey |
| Nov 1640 | Sir Charles Williams repl. 1642 by Henry Herbert | William Herbert, disabled 1644 |
| 1645 | John Herbert | Henry Herbert |
| 1648 | John Herbert | Henry Herbert |
| 1653 | Philip Jones | |

### MPs 1654–1660

| Year | First member | Second member | Third member |
| 1654 | Richard Cromwell, sat for Hampshire repl. by Thomas Morgan | Philip Jones sat for Glamorgan repl. by Thomas Hughes | Henry Herbert |
| 1656 | Major General James Berry, sat for Worcestershire repl. by Nathaniel Waterhouse | John Nicholas | Edward Herbert |
| 1659 | William Morgan | John Nicholas | |

### MPs 1660–1885

| Year | | First member | First party | | Second member | Second party |
| 1660 (CP) | | Henry Somerset, 1st Duke of Beaufort | | | William Morgan | |
| 1661 | | Henry Somerset, 1st Duke of Beaufort | | | William Morgan | |
| 1667 | | Sir Trevor Williams, Bt | Whig | | William Morgan | |
| Feb 1679 | | Charles, Lord Herbert | | | William Morgan | |
| Aug 1679 | | Sir Trevor Williams, Bt | Whig | | William Morgan | |
| 1680 | | Sir Trevor Williams, Bt | Whig | | Sir Edward Morgan, Bt | |
| 1681 | | Sir Trevor Williams, Bt | Whig | | Sir Edward Morgan, Bt | |
| 1685 | | Charles, Marquess of Worcester | | | Sir Charles Kemeys, Bt | |
| 1689 (CP) | | Charles, Marquess of Worcester | | | Sir Trevor Williams, Bt | Whig |
| 1690 | | Charles, Marquess of Worcester | | | Thomas Morgan | |
| 1695 | | Sir Charles Kemeys, Bt | | | Thomas Morgan | |
| 1698 | | Sir John Williams, Bt | | | Thomas Morgan | |
| 1700 | | Sir John Williams, Bt | | | Thomas Morgan | |
| 1701 (Jan) | | Sir John Williams, Bt | | | John Morgan | Whig |
| 1705 | | Sir Hopton Williams, Bt | | | John Morgan | Whig |
| 1708 | | Thomas Windsor | | | John Morgan | Whig |
| 1710 | | Thomas Windsor | | | John Morgan | Whig |
| 1712 | | James Gunter | | | John Morgan | Whig |
| Apr 1713 | | Thomas Lewis | | | John Morgan | Whig |
| Sep 1713 | | Sir Charles Kemeys, Bt | | | John Morgan | Whig |
| 1715 | | Thomas Lewis | | | John Morgan | Whig |
| 1720 | | Thomas Lewis | | | John Hanbury | Whig |
| 1722 | | William Morgan, the Elder | Whig | | John Hanbury | Whig |
| 1727 | | William Morgan, the Elder | Whig | | John Hanbury | Whig |
| 1731 | | Lord Charles Somerset | | | John Hanbury | Whig |
| 1734 | | Thomas Morgan, the Elder | | | John Hanbury | Whig |
| 1735 | | Thomas Morgan, the Elder | | | Charles Hanbury Williams | |
| 1741 | | Thomas Morgan, the Elder | | | Charles Hanbury Williams | |
| 1747 | | William Morgan, the Younger | Whig | | Capel Hanbury | |
| 1754 | | William Morgan, the Younger | Whig | | Capel Hanbury | |
| 1761 | | William Morgan, the Younger | Whig | | Capel Hanbury | |
| 1763 | | Thomas Morgan, the Younger | | | Capel Hanbury | |
| 1766 | | Thomas Morgan, the Younger | | | John Hanbury | Whig |
| 1768 | | Thomas Morgan, the Younger | | | John Hanbury | Whig |
| 1771 | | John Morgan | | | John Hanbury | Whig |
| 1774 | | John Morgan | | | John Hanbury | Whig |
| 1780 | | John Morgan | | | John Hanbury | Whig |
| 1784 | | John Morgan | | | Henry, Viscount Nevill | |
| 1785 | | John Morgan | | | James Rooke | |
| 1790 | | John Morgan | | | James Rooke | |
| 1792 | | Robert Salusbury | | | James Rooke | |
| 1796 | | Lt Col Sir Charles Morgan | Whig | | James Rooke | |
| 1802 | | Lt Col Sir Charles Morgan | Whig | | James Rooke | |
| 1805 | | Lt Col Sir Charles Morgan | Whig | | Capt Lord Arthur Somerset | |
| 1806 | | Lt Col Sir Charles Morgan | Whig | | Capt Lord Arthur Somerset | |
| 1807 | | Lt Col Sir Charles Morgan | Whig | | Capt Lord Arthur Somerset | |
| 1812 | | Lt Col Sir Charles Morgan | Whig | | Capt Lord Arthur Somerset | |
| 1816 | | Lt Col Sir Charles Morgan | Whig | | Lord Granville Somerset | Tory |
| 1818 | | Lt Col Sir Charles Morgan | Whig | | Lord Granville Somerset | Tory |
| 1820 | | Lt Col Sir Charles Morgan | Whig | | Lord Granville Somerset | Tory |
| 1826 | | Lt Col Sir Charles Morgan | Whig | | Lord Granville Somerset | Tory |
| 1830 | | Lt Col Sir Charles Morgan | Whig | | Lord Granville Somerset | Tory |
| 1831 | | William Addams Williams | Whig | | Lord Granville Somerset | Tory |
| 1832 | | William Addams Williams | Whig | | Lord Granville Somerset | Tory |
| 1834 | | William Addams Williams | Whig | | Lord Granville Somerset | Conservative |
| 1835 | | William Addams Williams | Whig | | Lord Granville Somerset | Conservative |
| 1837 | | William Addams Williams | Whig | | Lord Granville Somerset | Conservative |
| 1841 | | Octavius Morgan | Conservative | | Lord Granville Somerset | Conservative |
| 1847 | | Octavius Morgan | Conservative | | Lord Granville Somerset | Conservative |
| 1848 | | Octavius Morgan | Conservative | | Edward Arthur Somerset | Conservative |
| 1852 | | Octavius Morgan | Conservative | | Edward Arthur Somerset | Conservative |
| 1857 | | Octavius Morgan | Conservative | | Edward Arthur Somerset | Conservative |
| 1859 | | Octavius Morgan | Conservative | | Col Poulett Somerset | Conservative |
| 1865 | | Octavius Morgan | Conservative | | Col Poulett Somerset | Conservative |
| 1868 | | Octavius Morgan | Conservative | | Col Poulett Somerset | Conservative |
| 1871 | | Octavius Morgan | Conservative | | Lord Henry Somerset | Conservative |
| 1874 | | Col Frederick Morgan | Conservative | | Lord Henry Somerset | Conservative |
| 1880 | | Col Frederick Morgan | Conservative | | John Rolls | Conservative |
| 1885 | Constituency divided into: North Monmouthshire, South Monmouthshire, and West Monmouthshire | Constituency divided into: North Monmouthshire, South Monmouthshire, and West Monmouthshire | Constituency divided into: North Monmouthshire, South Monmouthshire, and West Monmouthshire | Constituency divided into: North Monmouthshire, South Monmouthshire, and West Monmouthshire | Constituency divided into: North Monmouthshire, South Monmouthshire, and West Monmouthshire | Constituency divided into: North Monmouthshire, South Monmouthshire, and West Monmouthshire |

### MPs since 2024

Monmouth and Newport East prior to 2024
| Election | Election | Member | Party |
| | 2024 | Catherine Fookes | Labour |

## Election results
### Elections in the 2020s

General election 2024: Monmouthshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Labour | Catherine Fookes | 21,010 | 41.3 | +9.7 |
| | Conservative | David TC Davies | 17,672 | 34.8 | −17.3 |
| | Reform UK | Max Windsor-Peplow | 5,438 | 10.7 | +9.8 |
| | Green | Ian Chandler | 2,357 | 4.6 | +2.1 |
| | Liberal Democrats | William Powell | 2,279 | 4.5 | −5.1 |
| | Plaid Cymru | Ioan Rhys Bellin | 1,273 | 2.5 | +0.1 |
| | Independent | Owen Lewis | 457 | 0.9 | N/A |
| | True & Fair | June Davies | 255 | 0.5 | N/A |
| | Heritage | Emma Meredith | 103 | 0.2 | N/A |
| Majority | Majority | Majority | 3,338 | 6.5 | |
| Turnout | Turnout | Turnout | 50,844 | 68.0 | |
| Registered electors | Registered electors | Registered electors | 74,823 | | |
| | Labour win (new seat) | Labour win (new seat) | Labour win (new seat) | Labour win (new seat) | Labour win (new seat) |

### Elections in the 1880s

General election 1880: Monmouthshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Frederick Courtenay Morgan | 3,529 | 27.6 | N/A |
| | Conservative | John Rolls | 3,294 | 25.8 | N/A |
| | Liberal | George Charles Brodrick | 3,019 | 23.6 | N/A |
| | Liberal | Marshall Warmington | 2,927 | 22.9 | N/A |
| Majority | Majority | Majority | 275 | 2.2 | N/A |
| Turnout | Turnout | Turnout | 6,385 (est) | 75.0 (est) | N/A |
| Registered electors | Registered electors | Registered electors | 8,518 | | |
| | Conservative hold | Conservative hold | Swing | N/A | |
| | Conservative hold | Conservative hold | Swing | N/A | |

### Elections in the 1870s

1874 Monmouthshire by-election :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Henry Somerset | Unopposed | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | 7,630 | | |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |
Somerset was appointed Comptroller of the Household, triggering a by-election.
General election 1874: Monmouthshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Frederick Courtenay Morgan | Unopposed | Unopposed | Unopposed |
| | Conservative | Henry Somerset | Unopposed | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | 7,630 | | |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |
1871 Monmouthshire by-election :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Lord Henry Somerset | Unopposed | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | | | |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |
Somerset resigned, triggering a by-election.

### Elections in the 1860s

General election 1868: Monmouthshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Octavius Morgan | 3,761 | 39.1 | N/A |
| | Conservative | Poulett Somerset | 3,525 | 36.6 | N/A |
| | Liberal | Henry Morgan-Clifford | 2,338 | 24.3 | N/A |
| Majority | Majority | Majority | 1,187 | 12.3 | N/A |
| Turnout | Turnout | Turnout | 5,981 (est) | 75.0 (est) | N/A |
| Registered electors | Registered electors | Registered electors | 7,971 | | |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |
General election 1865: Monmouthshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Octavius Morgan | Unopposed | Unopposed | Unopposed |
| | Conservative | Poulett Somerset | Unopposed | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | 4,909 | | |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |

### Elections in the 1850s

1859 Monmouthshire by-election :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Poulett Somerset | Unopposed | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | | | |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |
Somerset resigned by accepting the office of Steward of the Manor of Hempholme, triggering a by-election.
General election 1859: Monmouthshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Octavius Morgan | Unopposed | Unopposed | Unopposed |
| | Conservative | Edward Arthur Somerset | Unopposed | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | 5,073 | | |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |
General election 1857: Monmouthshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Octavius Morgan | Unopposed | Unopposed | Unopposed |
| | Conservative | Edward Arthur Somerset | Unopposed | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | 5,099 | | |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |
General election 1852: Monmouthshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Octavius Morgan | Unopposed | Unopposed | Unopposed |
| | Conservative | Edward Arthur Somerset | Unopposed | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | 4,973 | | |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |

### Elections in the 1840s

1848 Monmouthshire by-election :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Edward Arthur Somerset | Unopposed | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | | | |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |
Somerset's death caused a by-election.
General election 1847: Monmouthshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Octavius Morgan | 2,334 | 34.6 | N/A |
| | Conservative | Granville Somerset | 2,230 | 33.0 | N/A |
| | Conservative | Edward Arthur Somerset | 2,187 | 32.4 | N/A |
| Majority | Majority | Majority | 43 | 0.6 | N/A |
| Turnout | Turnout | Turnout | 3,376 (est) | 63.9 (est) | N/A |
| Registered electors | Registered electors | Registered electors | 5,286 | | |
| | Conservative hold | Conservative hold | Swing | N/A | |
| | Conservative hold | Conservative hold | Swing | N/A | |
September 1841 Monmouthshire by-election :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Granville Somerset | Unopposed | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | | | |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |
Somerset was appointed Chancellor of the Duchy of Lancaster, triggering a by-election.
General election 1841: Monmouthshire :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Granville Somerset | Unopposed | Unopposed | Unopposed |
| | Conservative | Octavius Morgan | Unopposed | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | 4,393 | | |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |
| | Conservative gain from Whig | Conservative gain from Whig | Conservative gain from Whig | Conservative gain from Whig | Conservative gain from Whig |
February 1841 Monmouthshire by-election :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Octavius Morgan | Unopposed | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | | | |
| | Conservative gain from Whig | Conservative gain from Whig | Conservative gain from Whig | Conservative gain from Whig | Conservative gain from Whig |
Williams resigned by accepting the office of Steward of the Chiltern Hundreds, triggering a by-election

### Elections in the 1830s

General election 1837: Monmouthshire :
| Party | Party | Candidate | Votes | % |
| | Conservative | Granville Somerset | Unopposed | Unopposed |
| | Whig | William Addams Williams | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | 4,347 | |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold |
| | Whig hold | Whig hold | Whig hold | Whig hold |
General election 1835: Monmouthshire :
| Party | Party | Candidate | Votes | % |
| | Conservative | Granville Somerset | Unopposed | Unopposed |
| | Whig | William Addams Williams | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | 3,714 | |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold |
| | Whig hold | Whig hold | Whig hold | Whig hold |
General election 1832: Monmouthshire :
| Party | Party | Candidate | Votes | % |
| | Tory | Granville Somerset | Unopposed | Unopposed |
| | Whig | William Addams Williams | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | 3,738 | |
| | Tory hold | Tory hold | Tory hold | Tory hold |
| | Whig hold | Whig hold | Whig hold | Whig hold |
General election 1831: Monmouthshire :
| Party | Party | Candidate | Votes | % |
| | Tory | Granville Somerset | Unopposed | Unopposed |
| | Whig | William Addams Williams | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | c. 2,000 | |
| | Tory hold | Tory hold | Tory hold | Tory hold |
| | Whig hold | Whig hold | Whig hold | Whig hold |
General election 1830: Monmouthshire :
| Party | Party | Candidate | Votes | % |
| | Tory | Granville Somerset | Unopposed | Unopposed |
| | Whig | Charles Morgan | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | c. 2,000 | |
| | Tory hold | Tory hold | Tory hold | Tory hold |
| | Whig hold | Whig hold | Whig hold | Whig hold |