Arms of St Ledger, Viscounts Doneraile: Azure fretty argent, a chief or

This branch of the Bourke family descends from John Bourke, fourth son of Sir Thomas Bourke ( died 1397 ), whose second son Edmund was the ancestor of the Viscounts Mayo ( of the first creation ).

There were also younger branches of the house of Foix-Grailly: the viscounts of Lautrec ( descended from Pierre de Foix, younger son of Jean III ); the Counts of Candale and Benauges ( descended from Gaston de Foix, a younger son of Archemboult and his son John de Foix, 1st Earl of Kendal ); the Counts of Gurson and Fleix and Viscounts of Meille ( Jean de Foix, Comte de Meille, Gurson et Fleix, was a younger son of Jean de Foix, Earl of Kendal ), and the Counts of Caraman, or Carmain, descended from Isabeau de Foix, Dame de Navailles ( only child of Archambaud de Foix-Grailly, Baron de Navailles ) and her husband Jean, Vicomte de Carmain, whose descendants adopted the name and arms of Foix.

The lower seat density in BEA's re-configured Viscounts combined with higher flight frequencies, superior catering and increased promotion proved insufficient to counter the appeal of Pan Am's new jets, despite these being laid out in a comparatively tight, pitch seating configuration.

The Viscounts ' seat was the original Oxenfoord Castle in Midlothian, built by the MakGills in the 16th century.

In 1868 he was created Baron Gormanston, in the County of Meath, in the Peerage of the United Kingdom, which gave the Viscounts an automatic seat in the House of Lords.

The ancestral seat of the Viscounts Powerscourt was the once vast Powerscourt Estate, near Enniskerry, Co Wicklow, in the Republic of Ireland.

The house and estate is the historic seat of the Boscawen family, Viscounts Falmouth.

He was therefore a member of an aristocratic family ( descendants of the Counts of Toulouse and Lautrec and the Viscounts of Montfa, a village and commune of the Tarn department of southern France ).

The cathedral was constructed over the crypt of a former Visigothic chapel, dedicated to Saint James, which was the proprietary church of the Viscounts of Barcelona, one of whom, Mir Geribert, sold the site to Bishop Guislebert in 1058.

Peter Temple's younger son Anthony Temple was the founder of the Irish branch of the family from whom the Viscounts Palmerston descended.

In 1880 he was raised to the peerage as Baron Mount Temple, a revival of the junior title held by the Viscounts Palmerston.

The branch of the Viscounts of Lautrec originated with Pierre, the son of John III of Foix ; Pierre's elder brother was Gaston IV of Foix.

1956 was also the year BEA began using Viscounts for nightfreight operations to increase cargo capacity as well as the aircraft's utilisation.

1962 was also the year BEA introduced Viscounts on its Scottish network.

While it was initially operationally responsible for its entire network as well as the Scottish Air Ambulance Service, operational responsibility for the Aberdeen – Heathrow route passed to BEA's Super One-Eleven division on 1 April 1973 when the latter's One-Eleven 500s began replacing Scottish Airways Viscounts and mainline division Tridents.

1956 was also the year that saw Viscounts supplementing DC-3s / Pionairs on the corporation's Heathrow – Jersey route as well as a new summer service from Belfast to Jersey.

When the Frankish kingdom in the west was divided along the boundary of the Saône and Meuse ( neatly dividing geographical Burgundy in the process ), Guerin was rewarded for his services by the king by being granted the administration of the Counties of Chalon and Nevers, in which he was by custom expected to appoint Viscounts to rule as his deputies.

The 3rd Countess's second husband was the titular 5th Earl of Derwentwater ( a younger brother of the attainted 3rd Earl ), and so the 4th and 5th Earls of Newburgh were also titular Earls of Derwentwater, Viscounts Radclyffe and Langley and Barons Tyndale, of Tyndale in the County of Northumberland, in the Peerage of England.

The Oxenfoord title was in honour of his property Oxenfoord Castle, and the title held by his wife's family, the Viscounts of Oxfuird ( or Oxenfoord ).

Oliver St John ( d. c. 1497 ), younger brother of the aforementioned Sir John St John ( d. c. 1482 ), was the ancestor of the Viscounts Grandison and the Viscounts Bolingbroke and St John.

He was the only son of Assheton Curzon, second son of Sir Nathaniel Curzon, 4th Baronet, of Kedleston ( ancestor of George Curzon, 1st Marquess Curzon of Kedleston, and the Barons and Viscounts Scarsdale ; see Viscount Scarsdale for earlier history of the family ).

From 1665 to 1816 the Skeffington Baronetcy of Fisherwick was attached to the viscountcy and from 1756 to 1816 the Viscounts also held the title of Earl of Massereene.

In 1920 it again fell into abeyance, which was terminated one year later for the Philipps family of the Viscounts of St Davids where it has remained since.

Moreover, St John's nephew Sir John St John, 1st Baronet, of Lydiard Tregoze, was the ancestor of the Viscounts Bolingbroke and the Viscounts St John.

The war ended in the Treaty of Paris ( 1229 ), by which the king of France dispossessed the house of Toulouse of the greater part of its fiefs, and that of the Trencavels ( Viscounts of Béziers and Carcassonne ) of the whole of their fiefs.

Viscounts, Barons and Lords of Parliament do not use of.

A territorial designation is often added to the main peerage title, especially in the case of Barons and Viscounts: for instance, Baroness Thatcher, of Kesteven in the County of Lincolnshire, or Viscount Montgomery of Alamein, of Hindhead in the County of Surrey.

Despite the addition of " d ' Estaing " to the family name by his grandfather, Giscard is not descended from the extinct noble family of Vice-Admiral d ' Estaing, that name being adopted by his grandfather in 1922 by reason of a distant connection to another branch of that family, from which they were descended with two breaks in the male line from an illegitimate line of the Viscounts d ' Estaing.

The younger sons of earls, along with the sons and daughters of Viscounts and Barons are granted the courtesy title of " The Honourable " before their name.

* The Viscounts and Counts of Melun are listed in Detlev Schwennicke, Europäische Stammtafeln, Neue Folge, Volume VII, Tafels 55 & 56.

The Beaumont family, the Viscounts Allendale acquired the hall in 1792 employing John Carr, the Horbury born architect, to remodel the library and dining room in 1793.

In 1792 it passed into the Beaumont family, ( latterly Barons and Viscounts Allendale ), and the library and dining room were remodelled by John Carr in 1793.

The 1st to 5th Earls also held an earlier Barony of Stanley, created for the 1st Earl's father in 1456 and currently abeyant ; the 2nd to 5th Earls held the Barony of Strange created in 1299, currently held by the Viscounts St Davids ; and the 7th to 9th Earls held another Barony of Strange, created in error in 1628 and currently held independently of other peerages.

The Viscounts entered service in 1955 and operated all of Iraqi Airways ' international services including a new route to London.

On one occasion six dukes, two marquises, twenty three earls, four Viscounts, and fourteen barons from the House of Lords joined members of the House of Commons in a procession to honour him, followed by one of these banquets.

His eldest son John Temple acquired the Stowe estate in Buckinghamshire and founded the English branch of the family from whom the Viscounts Cobham, the Dukes of Buckingham and Chandos and the Earls Temple of Stowe are descended.

In 1965, Cyprus began leasing its own Viscounts from BEA for regional routes.

In 1963, the airline took delivery of two Vickers Viscounts from Austrian Airlines and soon acquired a third from Northeast Airlines.

The site has been home to an Earl, two Dukes, a Prince of Wales and the Viscounts Astor.

By 1958, BEA had 77 Viscounts in service.

Following their delayed entry into service, BEA's Vanguards began flying to international destinations such as Malta and Barcelona and by 1962, took over approximately half of the flights previously operated by Viscounts on the airline's UK domestic trunk routes, where they operated in a 132-seat, single-class configuration.

BEA also had a requirement for a jet to replace Vanguards on the Heathrow – Manchester route to regain traffic lost to British Rail as a result of the electrification of the London – Manchester line and Berlin-based Viscounts to restore the competitive balance with Pan Am's new 727s on the internal German services.

This resulted in a BEA order for 18 firm BAC One-Eleven 500s plus six options in January 1967, for delivery from autumn 1968, to meet BEA's requirement to replace Vanguards / Viscounts on its Heathrow – Manchester and internal German routes.

Following its commercial debut on 1 September 1968 on BEA's internal German routes, the airline's new One-Eleven 500s began regular scheduled operations on 17 November 1968, respectively replacing Vanguards and Viscounts on the corporation's Heathrow – Manchester and Berlin routes.