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Viscountcy Dillon
Blazon Arms: Quarterly: 1st and 4th, Argent a Lion passant between three Crescents Gules (Dillon); 2nd and 3rd, Argent a Fess between three Crescents Sable (Lee). Crests: A Demi Lion Gules holding in its paws an Estoile Argent. Supporters: On either side an Angel proper vested Argent winged and crined Or each holding in the exterior hand a Branch of Palm also proper and having a Riband over the shoulder of the second.
Creation date	16 March 1622
Created by	King James VI and I
Peerage	Peerage of Ireland
First holder	Theobald Dillon, 1st Viscount Dillon
Present holder	Henry Benedict Charles Dillon, 22nd Viscount Dillon
Heir apparent	the Hon. Francis Charles Robert Dillon
Status	Extant
Motto	DUM SPIRO SPERO (While I breathe I hope)

Viscount Dillon, of Costello-Gallen in the County of Mayo, is a title in the Peerage of Ireland. It was created in 1622 for Theobald Dillon, Lord President of Connaught. The Dillons were a Hiberno-Norman landlord family from the 13th century in a part of County Westmeath called 'Dillon's Country'. His great-grandson, the seventh Viscount, was a supporter of the Catholic King James II of England and was outlawed after the Glorious Revolution. He founded 'Dillon's Regiment' of the Irish Brigade in the French Army, which was supported by the Wild Geese and achieved success at Fontenoy in 1745.

However, his son Henry, the eighth Viscount, managed to obtain a reversal of the outlawry in 1694 and later served as Lord Lieutenant of County Roscommon. His younger brother, Lieutenant-General Arthur Dillon, was given the French title of Count Dillon in 1711 and was also created "Viscount Dillon" and "Earl of Dillon" by James Francis Edward Stuart, the Jacobite claimant to the throne. His son Henry, the eleventh Viscount, was a Colonel in the French Army, but Dillon's Regiment was disbanded in 1793 due to the turmoils of the French Revolution. His son Charles, the twelfth Viscount, notably represented Westbury in Parliament and conformed to Anglicanism in 1767. His son Henry Augustus, the thirteenth Viscount, sat as a Member of Parliament for Harwich and County Mayo. His great-grandson, the nineteenth Viscount, was a Brigadier in the Army. As of 2014 the title is held by the latter's great-grandson, the twenty-second Viscount, who succeeded his father in 1982.

Viscounts Dillon (1622)

• Theobald Dillon, 1st Viscount Dillon (died 1624)
• Lucas Dillon, 2nd Viscount Dillon (1610–1629)
• Theobald Dillon, 3rd Viscount Dillon (1629–1630)
• Thomas Dillon, 4th Viscount Dillon (1615–1672)
• Thomas Dillon, 5th Viscount Dillon (died 1674)
• Lucas Dillon, 6th Viscount Dillon (died 1682)
• Theobald Dillon, 7th Viscount Dillon (died 1691)
• Henry Dillon, 8th Viscount Dillon (died 1713)
• Richard Dillon, 9th Viscount Dillon (1688–1737)
• Charles Dillon, 10th Viscount Dillon (1701–1741)
• Henry Dillon, 11th Viscount Dillon (1705–1787)
• Charles Dillon, 12th Viscount Dillon (1745–1813)
• Henry Augustus Dillon, 13th Viscount Dillon (1777–1832)
• Charles Henry Dillon, 14th Viscount Dillon (1810–1865)
• Theobald Dominick Geoffrey Dillon, 15th Viscount Dillon (1811–1879)
• Arthur Edmund Denis Dillon, 16th Viscount Dillon (1812–1892)
• Harold Arthur Dillon, 17th Viscount Dillon (1844–1932)
• Arthur Henry Dillon, 18th Viscount Dillon (1875–1934)
• Eric FitzGerald Dillon, 19th Viscount Dillon (1881–1946)
• Michael Eric Dillon, 20th Viscount Dillon (1911–1979)
• Charles Henry Robert Dillon, 21st Viscount Dillon (1945–1982)
• Henry Benedict Charles Dillon, 22nd Viscount Dillon (b. 1973)

The heir apparent is the present holder’s son, Hon. Francis Charles Robert Dillon (b. 2013)

See also

• Earl of Roscommon
• Baron Clonbrock
• Peerage of France
• Jacobite Peerage

Notes

This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Viscount Dillon" – news · newspapers · books · scholar · JSTOR (February 2013) (Learn how and when to remove this message)

1. Morris, Susan (2020). Debrett's Peerage and Baronetage 2019. ISBN 9781999767051.

References

• Hesilrige, Arthur G. M. (1921). Debrett's Peerage and Titles of courtesy. London: Dean & Son. p. 298.
• Kidd, Charles, Williamson, David (editors). Debrett's Peerage and Baronetage (1990 edition). New York: St Martin's Press, 1990,
• Leigh Rayment's Peerage Pages

v t e Extant viscountcies in the peerages of Britain and Ireland
Sorted by kingdom in which created, then creation date
England	Hereford
Scotland	Falkland Arbuthnott Oxfuird
Great Britain	Bolingbroke St John Cobham Falmouth Torrington Hood
Ireland	Gormanston Mountgarret Valentia Dillon Massereene Charlemont Downe Molesworth Chetwynd Midleton Boyne Gage Galway Powerscourt Ashbrook Southwell de Vesci Lifford Bangor Doneraile Harberton Hawarden Ferrard Monck Gort
United Kingdom	St Vincent Melville Sidmouth Exmouth Combermere Hill Hardinge Bridport Portman Hampden Hambleden Knutsford Esher Goschen Ridley Colville of Culross Selby Knollys Allendale Chilston Scarsdale Mersey Cowdray Devonport Astor Wimborne St Davids Rothermere Allenby Chelmsford Long Ullswater Younger of Leckie Bearsted Craigavon Bridgeman Hailsham Brentford Buckmaster Bledisloe Hanworth Trenchard Samuel Runciman of Doxford Davidson Weir Caldecote Camrose Stansgate Margesson Daventry Addison Kemsley Marchwood Montgomery of Alamein Waverley Thurso Brookeborough Norwich Leathers Soulbury Chandos De L'Isle Monckton of Brenchley Tenby Mackintosh of Halifax Dunrossil Stuart of Findhorn Rochdale Slim Head Boyd of Merton Mills Blakenham Eccles Dilhorne
Italics: This title is held by a peer who holds another of higher precedence.

• Viscountcies in the Peerage of Ireland
• Viscountcies in the Jacobite peerage
• Noble titles created in 1622