# Monaghan (UK Parliament constituency)

County Monaghan is a former parliamentary constituency in Ireland, returning two Members of Parliament (MPs) to the House of Commons of the Parliament of the United Kingdom.

## Boundaries

This constituency comprised the whole of County Monaghan.

## Members of Parliament

| Year | 1st Member | 1st Member | 1st Party | 2nd Member | 2nd Member | 2nd Party |
| 1801 | | Richard Dawson | | | Warner Westenra | |
| 1801 | | Richard Dawson | | | Charles Powell Leslie II | |
| 1807 | | Thomas Corry | | | Charles Powell Leslie II | |
| 1812 | | Richard Dawson | | | Charles Powell Leslie II | |
| 1813 | | Thomas Corry | | | Charles Powell Leslie II | |
| 1818 | | Henry Westenra | Whig | | Charles Powell Leslie II | |
| 1826 | | Henry Westenra | Whig | | Evelyn Shirley | Tory |
| 1830 | | Cadwallader Blayney | Tory | | Evelyn Shirley | Tory |
| 1831 | | Cadwallader Blayney | Tory | | Henry Westenra | Whig |
| 1832 | | Cadwallader Blayney | Tory | | Louis Perrin | Whig |
| 1834 | | Henry Westenra | Whig | | Louis Perrin | Whig |
| 1834, July | | Edward Lucas | Tory | | Louis Perrin | Whig |
| 1834, December | | Edward Lucas | Conservative | | Louis Perrin | Whig |
| 1835 | | Edward Lucas | Conservative | | Henry Westenra | Whig |
| 1841 | | Evelyn Shirley | Conservative | | Henry Westenra | Whig |
| 1843 | | Evelyn Shirley | Conservative | | Charles Powell Leslie III | Conservative |
| 1847 | | Thomas Vesey Dawson | Whig | | Charles Powell Leslie III | Conservative |
| 1852 | | Sir George Forster, Bt | Conservative | | Charles Powell Leslie III | Conservative |
| 1865 | | Vesey Dawson (known as Viscount Cremorne from July 1866) | Liberal | | Charles Powell Leslie III | Conservative |
| 1868 | | Sewallis Shirley | Conservative | | Charles Powell Leslie III | Conservative |
| 1871 | | Sewallis Shirley | Conservative | | John Leslie | Conservative |
| 1880 | | John Givan | Liberal | | William Findlater | Liberal |
| 1883 | | Tim Healy | Irish Parliamentary | | William Findlater | Liberal |
| 1885 | constituency abolished: see North Monaghan and South Monaghan | constituency abolished: see North Monaghan and South Monaghan | constituency abolished: see North Monaghan and South Monaghan | constituency abolished: see North Monaghan and South Monaghan | constituency abolished: see North Monaghan and South Monaghan | constituency abolished: see North Monaghan and South Monaghan |

## Election results
### Elections in the 1830s

General election 1830: Monaghan :
| Party | Party | Candidate | Votes | % |
| | Tory | Cadwallader Blayney | 631 | 38.6 |
| | Tory | Evelyn Shirley, Snr. | 472 | 28.9 |
| | Whig | Henry Westenra | 405 | 24.8 |
| | Whig | John Westenra | 78 | 4.8 |
| | Whig | Arthur Gamble Lewis | 48 | 2.9 |
| Majority | Majority | Majority | 67 | 4.1 |
| Turnout | Turnout | Turnout | 852 | 74.2 |
| Registered electors | Registered electors | Registered electors | 1,148 | |
| | Tory hold | Tory hold | Swing | |
| | Tory gain from Whig | Tory gain from Whig | Swing | |
General election 1831: Monaghan :
| Party | Party | Candidate | Votes | % |
| | Tory | Cadwallader Blayney | Unopposed | Unopposed |
| | Whig | Henry Westenra | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | 1,148 | |
| | Tory hold | Tory hold | Tory hold | Tory hold |
| | Whig gain from Tory | Whig gain from Tory | Whig gain from Tory | Whig gain from Tory |
General election 1832: Monaghan :
| Party | Party | Candidate | Votes | % |
| | Whig | Louis Perrin | 1,454 | 41.6 |
| | Tory | Cadwallader Blayney | 1,039 | 29.7 |
| | Whig | Henry Westenra | 1,005 | 28.7 |
| Turnout | Turnout | Turnout | 2,028 | 94.8 |
| Registered electors | Registered electors | Registered electors | 2,139 | |
| Majority | Majority | Majority | 415 | 11.9 |
| | Whig hold | Whig hold | Whig hold | Whig hold |
| Majority | Majority | Majority | 34 | 1.0 |
| | Tory hold | Tory hold | Tory hold | Tory hold |
Blayney succeeded to the peerage, becoming 12th Baron Blayney and causing a by-election.
By-election, 17 May 1834: Monaghan :
| Party | Party | Candidate | Votes | % | ±% |
| | Whig | Henry Westenra | 1,078 | 52.3 | −18.0 |
| | Tory | Edward Lucas | 984 | 47.7 | +18.0 |
| Majority | Majority | Majority | 94 | 4.6 | −7.3 |
| Turnout | Turnout | Turnout | 2,062 | c. 96.4 | c. +1.6 |
| Registered electors | Registered electors | Registered electors | c. 2,139 | | |
| | Whig gain from Tory | Whig gain from Tory | Swing | −18.0 | |
* On petition, Westenra's poll was amended to 973 votes and Lucas was declared elected on 30 July 1834
General election 1835: Monaghan :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Edward Lucas | 914 | 53.3 | +23.6 |
| | Whig | Henry Westenra | 733 | 42.7 | +1.1 |
| | Whig | William Elliott Hudson | 66 | 3.8 | −24.9 |
| | Whig | David Leslie | 2 | 0.1 | N/A |
| Turnout | Turnout | Turnout | 1,024 | 41.4 | −53.4 |
| Registered electors | Registered electors | Registered electors | 2,472 | | |
| Majority | Majority | Majority | 181 | 10.6 | +9.6 |
| | Conservative hold | Conservative hold | Swing | +23.6 | |
| Majority | Majority | Majority | 667 | 38.9 | +27.0 |
| | Whig hold | Whig hold | Swing | −5.4 | |
General election 1837: Monaghan :
| Party | Party | Candidate | Votes | % |
| | Conservative | Edward Lucas | Unopposed | Unopposed |
| | Whig | Henry Westenra | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | 3,194 | |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold |
| | Whig hold | Whig hold | Whig hold | Whig hold |

### Elections in the 1840s

General election 1841: Monaghan :
| Party | Party | Candidate | Votes | % | ±% |
| | Whig | Henry Westenra | Unopposed | Unopposed | Unopposed |
| | Conservative | Evelyn Shirley | Unopposed | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | 2,169 | | |
| | Whig hold | Whig hold | Whig hold | Whig hold | Whig hold |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |
Westenra succeeded to the peerage, becoming 3rd Baron Rossmore and causing a by-election.
By-election, 17 February 1843: Monaghan :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Charles Powell Leslie | Unopposed | Unopposed | Unopposed |
| | Conservative gain from Whig | Conservative gain from Whig | Conservative gain from Whig | Conservative gain from Whig | Conservative gain from Whig |
General election 1847: Monaghan :
| Party | Party | Candidate | Votes | % | ±% |
| | Whig | Thomas Vesey Dawson | Unopposed | Unopposed | Unopposed |
| | Conservative | Charles Powell Leslie | Unopposed | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | 2,351 | | |
| | Whig hold | Whig hold | Whig hold | Whig hold | Whig hold |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |

### Elections in the 1850s

General election 1852: Monaghan :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Charles Powell Leslie | 1,948 | 37.1 | N/A |
| | Conservative | George Forster | 1,900 | 36.1 | N/A |
| | Independent Irish | John Gray | 1,409 | 26.8 | New |
| Majority | Majority | Majority | 491 | 9.3 | N/A |
| Turnout | Turnout | Turnout | 3,333 (est) | 80.9 (est) | N/A |
| Registered electors | Registered electors | Registered electors | 4,119 | | |
| | Conservative hold | Conservative hold | Swing | N/A | |
| | Conservative gain from Whig | Conservative gain from Whig | Swing | N/A | |
General election 1857: Monaghan :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Charles Powell Leslie | Unopposed | Unopposed | Unopposed |
| | Conservative | George Forster | Unopposed | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | 5,093 | | |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |
General election 1859: Monaghan :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Charles Powell Leslie | Unopposed | Unopposed | Unopposed |
| | Conservative | George Forster | Unopposed | Unopposed | Unopposed |
| Registered electors | Registered electors | Registered electors | 5,121 | | |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |
| | Conservative hold | Conservative hold | Conservative hold | Conservative hold | Conservative hold |

### Elections in the 1860s

General election 1865: Monaghan :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Charles Powell Leslie | 2,551 | 35.6 | N/A |
| | Liberal | Vesey Dawson | 2,397 | 33.4 | New |
| | Conservative | George Forster | 2,218 | 30.9 | N/A |
| | Liberal | Edward James Stanley | 3 | 0.1 | New |
| Turnout | Turnout | Turnout | 4,782 (est) | 89.4 (est) | N/A |
| Registered electors | Registered electors | Registered electors | 5,350 | | |
| Majority | Majority | Majority | 154 | 2.2 | N/A |
| | Conservative hold | Conservative hold | Swing | N/A | |
| Majority | Majority | Majority | 179 | 2.5 | N/A |
| | Liberal gain from Conservative | Liberal gain from Conservative | Swing | N/A | |
General election 1868: Monaghan :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | Charles Powell Leslie | 3,130 | 45.5 | +9.9 |
| | Conservative | Sewallis Shirley | 2,785 | 40.5 | +9.6 |
| | Liberal | William Gray | 960 | 14.0 | −19.5 |
| Majority | Majority | Majority | 1,825 | 26.5 | +24.3 |
| Turnout | Turnout | Turnout | 3,918 (est) | 70.1 (est) | −19.3 |
| Registered electors | Registered electors | Registered electors | 5,591 | | |
| | Conservative hold | Conservative hold | Swing | +9.8 | |
| | Conservative gain from Liberal | Conservative gain from Liberal | Swing | +9.7 | |

### Elections in the 1870s

Leslie's death caused a by-election.
By-election, 22 Jul 1871: Monaghan :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | John Leslie | 2,538 | 63.6 | −22.4 |
| | Home Rule | Isaac Butt | 1,451 | 36.4 | New |
| Majority | Majority | Majority | 1,087 | 27.2 | +0.7 |
| Turnout | Turnout | Turnout | 3,989 | 70.9 | +0.8 |
| Registered electors | Registered electors | Registered electors | 5,623 | | |
| | Conservative hold | Conservative hold | Swing | N/A | |
General election 1874: Monaghan :
| Party | Party | Candidate | Votes | % | ±% |
| | Conservative | John Leslie | 2,481 | 35.4 | −10.1 |
| | Conservative | Sewallis Shirley | 2,417 | 34.5 | −6.0 |
| | Home Rule | John Madden | 2,105 | 30.1 | N/A |
| Majority | Majority | Majority | 312 | 4.5 | −22.0 |
| Turnout | Turnout | Turnout | 4,554 (est) | 81.9 (est) | +11.8 |
| Registered electors | Registered electors | Registered electors | 5,559 | | |
| | Conservative hold | Conservative hold | Swing | N/A | |
| | Conservative hold | Conservative hold | Swing | N/A | |

### Elections in the 1880s

General election 1880: Monaghan :
| Party | Party | Candidate | Votes | % | ±% |
| | Liberal | John Givan | 2,818 | 29.4 | New |
| | Liberal | William Findlater | 2,545 | 26.6 | New |
| | Conservative | John Leslie | 2,117 | 22.1 | −13.3 |
| | Conservative | Sewallis Shirley | 2,099 | 21.9 | −12.6 |
| Majority | Majority | Majority | 428 | 4.5 | N/A |
| Turnout | Turnout | Turnout | 4,790 (est) | 87.1 (est) | +5.2 |
| Registered electors | Registered electors | Registered electors | 5,496 | | |
| | Liberal gain from Conservative | Liberal gain from Conservative | Swing | N/A | |
| | Liberal gain from Conservative | Liberal gain from Conservative | Swing | N/A | |
Givan was appointed Crown Solicitor for Kildare and Meath, causing a by-election.
By-election, 30 June 1883: Monaghan :
| Party | Party | Candidate | Votes | % | ±% |
| | Irish Parliamentary | Tim Healy | 2,376 | 51.0 | New |
| | Conservative | John Monroe | 2,011 | 43.1 | −0.9 |
| | Liberal | Henry Pringle | 274 | 5.9 | −50.1 |
| Majority | Majority | Majority | 365 | 7.9 | N/A |
| Turnout | Turnout | Turnout | 4,661 | 88.3 | +1.2 (est) |
| Registered electors | Registered electors | Registered electors | 5,281 | | |
| | Irish Parliamentary gain from Liberal | Irish Parliamentary gain from Liberal | Swing | N/A | |