Foreign titles held by Peers and Baronets

[S. S.]

I was trying to come up with foreign titles held by peers and baronets only, both extant and extinct. Forgive me if I made some mistakes in the wording of the titles, since I am not much aware of continental nobility and go off of secondary sources. Any ideas for others?

Sir Robert Dillon, 8th Bt [I]. Freiherr Dillon (HRE, 4 July 1783).

Viscount Bridport. Ducato di Bronte (Kingdom of the Two Sicilies, 10 Oct 1799).

Earl of Clancarty [I]. Markies van Heusden (The Netherlands, 8 July 1815).

Earl of Portland. Graf von Bentick (HRE, 1732).

Lord Reay [S]. Heer von Ophemert en Zennewijnen (The Netherlands, 1822); Heer Mackay (The Netherlands, 1858).

Duke of Wellington. Conde de Vimeiro (Portugal) 18 Oct 1811; Duc de Ciudad Rodrigo (Spain) and Grandee First Class of Spain 30 Jan 1812; Marquês de Torres Vedras (Portugal) Aug 1812; Duque de Victoria (Portugal) 18 Dec 1812; Prins van Waterloo (The Netherlands) 18 July 1815; Prince de Waterloo (Belgium) 1831.

Duke of Marlborough. Fürst (HRE, 28 Aug 1704); Fürst von Mindelheim (HRE, 18 Nov 1705; exchanged 1713 for Mellenburg?).

Duke of Abercorn. Duc de Châtellerault (France, 1864 as revival of the 1548 title held by John Hamilton, 2nd Earl of Arran [S]).

Duke of Richmond, Gordon and Lennox. Duc d’Aubigny (France).

 

The Barons Arundell of Wardour (extinct 1944) held the title of Graf von Arundell (HRE, 1595).

The Viscounts Taaffe (extinct 1928) held the title of Graf von Taaffe (HRE, temp Maria Theresa, Holy Roman Empress?).

S.S.

[Paul Theroff]

Some others:

1. Sir John O'Reilly, 1812 NUGENT, 3rd Bt. (5 Apr 1800-16 Feb 1859); per Cokayne he was cr a Reichsgraf; at any rate he was adopted by his uncle Andreas Reichsgraf O’Reilly; if so, then his male-line issue, the Nugent of Ballinlough Baronets, would be Reichsgrafen.

2. Lord Rothschild is a German Baron (cr 1822).

3. Lord Howard de Walden is Graf Czernin von Chudenitz.

[Paul Theroff]

Also, the Earl of Newburgh is a Principe Rospigliosi.

[Paul Theroff]

There are many deceased holders of extinct peerages who held foreign titles, such as the Cowpers, so I won't try to search for them all.

I did find one attainted peerage with a foreign title:

Anthony Beresford (b.1940), who but for the 1641 attainders of the 9th Lord and his father, would be 21st Lord Le Power and Coroghmore, and is a papal count.

On Monday, May 4, 2026 at 9:56:02 AM UTC-5 Paul Theroff wrote:

[marquess]

Rothschild is a baron of the Austrian Empire. There's a baronet that holds a Swedish barony whose name eludes me. Lord Cottesloe is a baron of the Austrian Empire.

[colinp]

The baronet who holds a Swedish barony (or perhaps they would see it as the other way round) is von Friesendorff.

Barry Bt - Baron de Barry (Portugal)

Boreel Bt - Jonkheer (Netherlands)

Walker Bt (1856) - Pasha (Ottoman Empire)

Baron Acton is a Patrician of Naples/Two Sicilies

[https:/www.LeighRayment.com.au]

Here is a uncomplete list:

* Baron Curzon, Holy Roman Empire, (1500),
* Barony Alby (White), Holy Roman Empire, (1513),
* Duc de Chatellerault, (Hamilton) Kingdom of France, (1514),
* Barone Wemyss, Duchy of Mantua, (1630),
* Baron von Wallis, Baron von Wallis, Holy Roman Empire, (1642),
* Duchess Dudley, Duchess in Tuscany (Royal Licence, 23rd May, 1644),
* Baron Douglas, Kingdom of Sweden, (1651),
* Count of Skenninge, (Douglas) Kingdom of Sweden, (1654),
* Baron Fleetwood, Kingdom of Sweden, (1654),
* Count of Mertola in the Kingdom of Portugal (1663),
* Count Wemyss, Empire of the Holy Roman Empire, ( 17 Dec 1676),
* Marquis d’Albyville, Knight, Baron and Marquis of the Holy Roman Empire. (7th April, 1679)
* Duke and Duchesse d’Aubigny. of France. (January 1683).
 * Count (Granville) of the Holy Roman Empire (21st July, 1684)
* Count Piper, Kingdom of Sweden, (3 Jan 1698), * Count of Castillo, Kingdom of Spain, (1708),
* Count Spens of Hoja, Kingdom of Sweden, (20 Feb 1712),
* Baron Bennet, Kingdom of Sweden, (2 June 1719),
* Marquis de Lauriston, (Law) Kingdom of France, (c. 1720);
* Count von Wallis, Holy Roman Empire, (14 Jul 1724),
* Counts von Wallis, Baron von Wallis, Holy Roman Empire, (1731),
* Seigneur de Bierry e Barone d’Anstrude, Kingdom of France, (Aug 1737),
* Comte Walsh, (Kingdom of France) 1745,
*  Comte d’Arcy, Kingdom of France, (Feb 1746),
* Count de Salis, Count of the Holy Roman Empire (1748),
* Conte Caldwell, Duchy of Milan, (15 Mar 1749),
* Barons de Robeck, Kingdom of Sweden, (1750),
* Comte d’Eguilly, (MacMahon), Kingdom of France (1750),
* Sir John Le Blon, Knight of the Holy Roman Empire, (6th December, 1750)
* Count Hamilton of Barseback, Kingdom of Sweden, (21 Nov 1751),
* Comte de Serrant (Walsh), Kingdom of France, (1755).
* Count of Gage, Kingdom of Belgium, (24 Jun 1756),
* Count of the Holy Roman Empire (Taaffe), (1758),
 * Baron Murray, Kindom of Belgium, (16 Sep 1760),
* Baron o’Donell von Tryconell, Holy Roman Empire, (11 Nov 1763),
* Counts von Wallis, Baron von Wallis, Holy Roman Empire, (1765),
* Count Macnevin O’Kelly op Aughrim, Holy Roman Empire, (14 Nov 1767),
* Count Sinclair von Lambahof, Kingdom of Sweden, (15 Oct 1771),
* Marquis de Walsh Serrant (Walsh), Kingdom of France, (1774).
* Baron d’Arcy, Kingdom of France, (1780), * Baron Villiers of the Kingdom of Prussia (1782)
* Count of Murray, Kingdom of Belgium, (19 Mar 1783),
* Count O’Connell, Kingdom of France, (1783),
 * Count of Preston, Kingdom of Belgium, (19 Oct 1784),
* Count Lockhart, Count of the Holy Roman Empire (May, 1785)
 * Prince (Cowper) of the Holy Roman Empire (19th August, 1785),
* Count D’Alton, Count of the Holy Roman Empire (26th October, 1785),
* Comte de O’Mahony, Kingdom of France, (1788),
* Baron Wolff, Baron of the Holy Roman Empire (9th January, 1792)
* Prince (D’Auvergne) Successor to the Duchy of Bouillon (27th February, 1792),
* Count of Rumford, Count (Thompson) of the Holy Roman Empire (January, 1794)
* Baron Dillon, Baron of the Holy Roman Empire (1800),
* Duke of Bronte, Duke (Nelson) in the two Sicilies (9th January, 1801),
* Duc de Tarente, Empire of France, (30 Mar 1806,
* Count of Maida, Count (Stuart) in Calabria in the two Sicilies, (23rd September, 1806),
* Duke of Bronte (Nelson) (21st October, 1806),
* Omrah or Noble (Warner) of the Mogul Empire, Hindostan (17th November. 1806),
* Baron de l’Empire, (Bourke) Empire of France (1808),
* Comte de l’Empire e Lauriston (Law), Empire of France, (1808),
* Comte de l’Empire (d’Hunebourg) (Clarke), Empire of France (1808), 
* Duc de Feltre, (Clarke), Empire of France, (1809),
* Baron de l’Empire (Dalton /d’Alton), Empire of France (15 March 1809)
* Duc de Tarente, (Macdonald), Empire of France (9 Dec 1809).;
* Baron de l’Empire (O’Meare), Empire of France, (14-4-1810),
* Comte de l’Empire (Walsh) Empire of France, (1810).,
* Comte de l’Empire (Lynch), Empire of France (1810);
* Baron d’Anstrude, Empire of France, (26 Apr 1811),
* Conde de Vimiera, Count (Wellington) in Portugal, 18th October, 1811,
* Conde de Trancozo, Count (Beresford) in Portugal (18th October. 1811),
* Count St Paul, Count (Paul family) of the Holy Roman Empire (7th September, 1812),
* Count de l’Empire (Dalton) Empire of France (11 April 1812) * Count de Pierrebough (Harty) Empire of France (17 April 1812);
* Baron Dimsdale, Baron in Russia (29th July, 1813),
* Prince Barclay of Tolly-Weimarn, Empire of Russia, (30 Aug 1815),
 * Comte de l’Empire (Dalton) Empire of France (1815)
* Comte de Warren, Kingdom of France, (28 Mar 1816),
* Baron von Fremantle, Empire of Austria, (29 Nov 1816),
* Marquis de Lauriston, (Law), Kingdom of France, (1817),
* Marquess of Heusden, Kingdom of Belgium, (18 July 1818),
* Counts de Stacpoole, Kingdom of France, 21 July 1818,
* Baron de Hochpied, Baron and Magnat of Hungary (27th September, 1819),
* Baron van Ferrieres, Kingdom of Netherlands, (14 Feb 1820,
* Baron Browne-Mills, Kingdom of France, (1820), * Comte de l’Empire, (Bourke) Empire of France (1821),
* Comte Walsh, Kingdom of France, (1821).,
* Baron Mackay van Ophemert, Kingdom of Netherlands, (4 June 1822),
* Baron von Rothschild, Empire of Austria, (29 Sep 1822),
* Baron Melvill of Carnbee, Kingdom of Netherlands, (6 May 1822), * Comte Nugent, Kingdom of France, (1823),
* Marquis of Heusden, Netherlands (6th August, 1824),
* Baron de Cecil, Kingdom of Belgium, (16 June 1824),
* Conde de Cassilhas, Count (Thornton) in Portugal (10th October, 1825),
* Baron Taylor, Kingdom of France, (28 May 1825),
* Baron Mac Curtain de Kainlis, Kingdom of France (28 May 1825),
* Marchese de Stacpoole, Papal title, (21 Feb 1826,
* Count de Bemposta and Grande of Portugal, (Hyde), Kingdom of Portugal, (c. 1828).
* Baron de Bertouch, Kingdom of Denmark, (1 Feb 1828),
* Baron de Wall, Kingdom of France, (1829),
* Baron von Washington, Kingdom of Bavaria, (8 Dec 1829),
* Baron Hyde de Neuville, Kingdom of France (20 January 1830)
* Duca de Stacpoole, Papal title, (May 1831),
* Baron Grant, Baron of Austria (9th April, 1832),
* Baron Rothschild, Baron of Austria (16th June, 1838),
* Duc de la Mothe-Houdancourt (Walsh de Serrant), Kingdom of Spain, (1838),
* Barone de Everton, Duchy of Lucca, (1842),
* Baron Profumo, Kingdom of Sardinia, (30 Nov 1843),
* Count Eyre, Papal, (3 Mar 1843),
* Baron Hawkins, Kingdom of Hannover, (1843),
* Comte O’Sullivan de Grass de Seovand, Kingdom of Belgium, (15 Oct 1845),
* Baron de Goldsmid and da Palmeira, Baron of Portugal (6th June, 1846),
* Barone Ward, Duchy of Lucca, (21 Jun 1847),
* Baron Whettnall, Kingdom of Belgium, (16 Jul 1851),
* Baron Hambro, Kingdom of Denmark, (6 Oct 1851),
 * Viscount Conway, Kingdom of Belgium, (27 Aug 1853,
 * Baron Serra da Estrella, Kingdom of Portugal, (14 Dec 1853),
* Baron de Barreto, Kingdom of Portugal, (31 May 1855),
* Barons Ramsay, Kingdom of Finland, (7 Sep 1856),
* Principe di Nugent, Empire of Austria, (21 May 1858),
* Duc de Magenta, Empire of France, (6 Jun 1859),
* Baron Nugent, Empire of Austria, (25 Aug 1859),
* Baron Halkett, Kingdom of Hanover, (18 June 1862),
* Conte Russell of Killough, Papal, (22 Aug 1862),
 * Baron de Stern, Kingdom of Portugal, (29 Jul 1864),
* Duc de Chatellerault, Empire of France, (20 April 1864),
* Counts de la Poer, Papal States, (19 August 1864),
* Baron Heath, Kingdom of Italy, (1867),
* Count Cecil Kearney, Papal, (Nov 1868),
 * Baron von Schroder, Kingdom of Prussia, (26 Dec 1868),
* Viscount Mason, Kingdom of Portugal, (7 Dec 1868),
* Countess Tasker, Papal, (1870),
* Visconde de Stern, Kingdom of Portugal (17 Jan 1870)
 * Conde de Monserrate, Kingdom of Portugal (7 June 1870)
* Baron de Worms in Austria (23 April 1871)
, * Visconde de Airey, Kingdom of Portugal, (1872),
* Marchesa Stapleton-Bretherton, Papal, (20 Jun 1873),
* Baron de Samuel, Kingdom of Portugal, (1874),
* Baron de Swaine, Kingdom of Bavaria, (29 Nov 1874),
 * Baroness Keatinge, Papal, (16 Feb 1875),
* Conte O’Connell, Papal, (22 March 1876),
 * Marchese d’Oyley, Kingdom of Spain, (26 Sep 1876),
* Conte Moore, Papal, (7 Feb 1879),
* Duchessa di Pomar, Papal, (13 Jun 1879),
* Baron Craignish in Saxe-Coburg and Gotha (4th January, 1883),
* Conte Murphy, Papal, (26 Nov 1883),
* Conte Plunkett, Papal, (1884),
* Baron Dickson, Kingdom of Sweden, (1885),
* Count Bentinck, Count of the Holy Roman Empire (22nd April, 1886)
* Baron Campbell von Laurentz in Saxe-Coburg and Gotha (14th February, 1887),
* Baron William von Schroder, Baron of the Kingdom of Prussia (13th May, 1890),
* Conte Mercier, Papal, (1891),
* Count Maccaffrey of Kean More, Empire of Austria, (20 Dec 1891),
* Baron von Reuter in Saxe-Coburg and Gotha, (6th November, 1891),
 * Conte Rushbrooke, Papal, (20 July 1892),
* Baron (Kusel) in Italy (5th November, 1892),
* Baron (Kusel) (8th February, 1893),
 * Baron Stuart, Empire of Russia, (16 Feb 1894),
* Count Douglas, Kingdom of Prussia, (2 Dec 1894),
* Marchese di Cashel Thomond (Ffrench) of the Papacy, 1895,
* Baron de Bush, Barony of Saxe-Coburg (29th July, 1896),
* Marchese Macswiney di Mashanaglass), Kingdom of Spain, (April 1896),
* Conte di Ereso (Clifford Meller), Papal, (11 Feb 1899),
* Duca di Warren, Papacy, (27 Jun 1900),
* Baron de Forest, Barony of the Austrian Empire (6th October, 1900),
* Baron Boxall, Barony of Saxe-Coburg (17th October, 1900),
 * Count Nugent-Pallavicini-Centurione, Empire of Austria, (28 Feb 1901),
* Count Ward, Papacy, (14 Jan 1902),
|* Marchese de Lisle, Papal, (Jul 1903),
* Baron de Teissier, Barony of the Kingdom of France (16th September, 1905),
* Count Blake, Papacy (1905),
* Count Lescher, Papacy (1905)
* Count Riccardi-Cubitt. Count of the Kingdom of Italy (16th December, 1905),
 * Baron Patterson, Kingdom of Portugal, (23 May 1907),
* Conte Clayton-Browne, Papal, (19 Jun 1907),
* Baron Nugent, Baron of the Austrian Empire (22nd July. 1908),
* Marquis of Sarzano, Marquis of the Duchy of Modena (22nd August, 1910),
* Count de Bury, Count of Austria (19th November, 1910),
* Baron Bentinck, Barony of the Kingdom of the Netherlands (12th September, 1911),
* Count von Gurowski, Count of the Kingdom of Prussia (9th November, 1911),
* Baron William von Schroder, Baron of the Kingdom of Prussia (6th November, 1912),
* Baron de Rutzen, Baron of the Kingdom of Poland (23rd May, 1918),
* Marquis d’Hautpoul de Seyre, Marquis of the Kingdom of France (6th June, 1923)
* Marquis de Urra, in the Kingdom of Portugal.
* Contessa English, Papal, (Unknown date of Creation),
* Marchesa di San Juan, (O’Garvey), Papal, (Unknown date of Creation),
* Conte O’Gorman, Papal, (Unknown date of Creation),
* Conte Souza, Papal, (Unknown date of Creation),
* Conte Lescher, Papal, (Unknown date of Creation),
* Conte O’Byrne, Papal, (Unknown date of Creation),
* Conte Sherlock, Papal, (Unknown date of Creation),
* Conte Cassell, Papal, (Unknown date of Creation),
 * Marchese di Bourke, Papal, (Unknown date of Creation), 

https://maltagenealogy.com/British-Foreign-Peerages/

[Noel Cox]

On the subject of the Dukes of Marlborough, the status of the imperial titles is complicated. See my article, "Property law, imperial and British titles: The Duke of Marlborough and the Principality of Mindelheim" (2009) The Legal History Review/Tijdschrift voor Rechtsgeschiedenis/Revue d'Histoire du Droit 191-210.

The case of the Duke of Marlborough and the Principality of Mindelheim illustrates a fundamental distinction between British peerages and imperial titles. John Churchill was not only created Duke of Marlborough in the English peerage but also made a Prince of the Holy Roman Empire and granted the Principality of Mindelheim, which was a real territorial state. The key point is that these titles operated under entirely different legal systems.

In Britain, peerages functioned much like flexible hereditary property interests. The Marlborough dukedom, for example, was granted with a special remainder allowing it to pass through daughters. It could therefore survive in altered form within the domestic legal system even when the direct male line failed.

By contrast, an imperial principality such as Mindelheim was inseparable from territorial sovereignty. It was not simply a title but a constitutional office tied to land, jurisdiction, and status within the Empire. It could not be freely adapted by legal instrument, and it effectively depended on possession of the territory. When Mindelheim was returned to Bavaria after the War of the Spanish Succession, the principality – and any meaningful claim to the title – ceased to exist.

Noel Cox

[marquess]

Schomberg is the only one that I can think of missing from this list unless I have missed it. 

[S. S.]

Thanks all for the abundance of info. I will parse through this list over time and come up with a list later. 

S.S.

[colinp]

The late Viscount Exmouth was 9th Marques de Olias (Spain) though this title may pass to his daughter Patricia by his 1st m