| The Viscount Portman | 
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| Born | Christopher Edward Berkeley Portman (1958-07-30) 30 July 1958
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| Nationality | British | 
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| Occupation | Property developer | 
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| Spouses |  Caroline SteensonPatricia Martins Pim
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| Children | 3 sons | 
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 Christopher Edward Berkeley Portman, 10th Viscount Portman (born 30 July 1958) is a British peer and property developer.  
  Early life
 Portman is the eldest son of Edward Portman, 9th Viscount Portman by his first wife Rosemary Joy Farris. He was educated at Marlborough College. He inherited the viscountcy on his father's death in 1999. 
 Career
 This fortune is principally the controlling interest in a 110-acre (0.45 km2) portion of Marylebone, central London, the Portman Estate. The trust is spending £40 million on an investment programme to create a shopping area, Portman Village. 
Lord Portman's other assets include shares in commercial properties in New York state and Florida. 
 Personal life
 Portman is a resident of Switzerland.[1] In May 2025, the Sunday Times Rich List estimated his net worth to be £1.9 billion.[1] 
 Marriages and children
 Portman's first wife was Caroline Steenson, and they had one son:[2] 
  In 1987, he married the Brazilian Patricia Martins Pim, now Viscountess (Lady) Portman, and they have two sons:[2] 
 - Hon. Matthew Portman (born 1990)[2]
- Hon. Daniel Portman (born 1995)[2]
Arms
  Coat of arms of Christopher Portman, 10th Viscount Portman   |   | CoronetA Coronet of a ViscountCrest1st:  a Talbot sejant Or; 2nd:  a Unicorn passant Gules armed and crined OrEscutcheonQuarterly:  1st and 4th, Or a Fleurs-de-lis Azure (Portman); 2nd and 3rd, Gules a Chevron Ermine between ten Crosses Patée Argent six in chief and four in base (Berkeley)SupportersDexter:  a Savage wreathed about the head and waist with Ivy in his dexter hand a Club resting on the shoulder proper; Sinister:  a Talbot OrMottoA Clean Heart and a Cheerful Spirit
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 [3] 
 References
  External links
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| Sorted by (historical) entity at time of grant | 
| England  |  |  | 
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| Scotland  |  | 
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| Ireland  |  Nicholas Preston, 17th Viscount GormanstonPiers Butler, 18th Viscount MountgarretFrancis Annesley, 16th Viscount ValentiaHenry Dillon, 22nd Viscount DillonCharles Skeffington, 15th Viscount MassereeneJohn Caulfeild, 15th Viscount CharlemontRichard Dawnay, 12th Viscount DowneRobert Molesworth, 12th Viscount MolesworthAdam Chetwynd, 11th Viscount ChetwyndAlan Brodrick, 12th Viscount MidletonGustavus Hamilton-Russell, 11th Viscount BoyneNicolas Gage, 8th Viscount GagePhil Monckton, 13th Viscount GalwayMervyn Wingfield, 11th Viscount PowerscourtMichael Flower, 11th Viscount AshbrookPyers Southwell, 7th Viscount SouthwellThomas Vesey, 7th Viscount de VesciEdward Hewitt, 9th Viscount LiffordWilliam Ward, 8th Viscount BangorWilliam Ward, 8th Viscount DoneraileHenry Pomeroy, 11th Viscount HarbertonRobert Maude, 9th Viscount HawardenCharles Skeffington, 8th Viscount FerrardCharles Monck, 7th Viscount MonckFoley Vereker, 9th Viscount Gort
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| United Kingdom  |  Edward Jervis, 8th Viscount St VincentRobert Dundas, 10th Viscount MelvilleJeremy Addington, 8th Viscount SidmouthPaul Pellew, 10th Viscount ExmouthThomas Stapleton-Cotton, 6th Viscount CombermerePeter Clegg-Hill, 9th Viscount HillThomas Hardinge, 8th Viscount HardingeAlexander Hood, 4th Viscount BridportFrancis Brand, 7th Viscount HampdenHenry Smith, 5th Viscount HambledenMichael Holland-Hibbert, 6th Viscount KnutsfordChristopher Brett, 5th Viscount EsherGiles Goschen, 4th Viscount GoschenMatthew White Ridley, 5th Viscount RidleyCharles Colville, 5th Viscount Colville of CulrossChristopher Gully, 6th Viscount SelbyPatrick Knollys, 4th Viscount KnollysWenworth Beaumont, 4th Viscount AllendaleAlastair Akers-Douglas, 4th Viscount ChilstonPeter Curzon, 4th Viscount ScarsdaleEdward Bigham, 5th Viscount MerseyMichael Pearson, 4th Viscount CowdrayTerence Kearley, 3rd Viscount DevonportWilliam Astor, 4th Viscount AstorIvor Guest, 4th Viscount WimborneRhodri Philipps, 4th Viscount St DavidsJonathan Harmsworth, 4th Viscount RothermereHenry Allenby, 4th Viscount AllenbyFrederic Thesiger, 4th Viscount ChelmsfordJames Long, 5th Viscount LongNicholas Lowther, 2nd Viscount UllswaterJames Younger, 5th Viscount Younger of LeckieNicholas Samuel, 5th Viscount BearstedRobin Bridgeman, 3rd Viscount BridgemanDouglas Hogg, 3rd Viscount HailshamCrispin Joynson-Hicks, 4th Viscount BrentfordAdrian Buckmaster, 4th Viscount BuckmasterRupert Bathurst, 4th Viscount BledisloeDavid Pollock, 3rd Viscount HanworthHugh Trenchard, 3rd Viscount TrenchardJonathan Samuel, 5th Viscount SamuelDavid Runciman, 4th Viscount Runciman of DoxfordNicolas Davidson, 4th Viscount DavidsonWilliam Weir, 3rd Viscount WeirPiers Inskip, 3rd Viscount CaldecoteJonathan Berry, 5th Viscount CamroseStephen Benn, 3rd Viscount StansgateRichard Margesson, 3rd Viscount MargessonJames FitzRoy Newdegate, 4th Viscount DaventryWilliam Addison, 4th Viscount AddisonRichard Berry, 3rd Viscount KemsleyPeter Penny, 4th Viscount MarchwoodHenry Montgomery, 3rd Viscount Montgomery of AlameinJohn Anderson, 3rd Viscount WaverleyJohn Sinclair, 3rd Viscount ThursoAlan Brooke, 3rd Viscount BrookeboroughJason Cooper, 3rd Viscount NorwichChristopher Leathers, 3rd Viscount LeathersPeter Ramsbottom, 4th Viscount SoulburyThomas Lyttelton, 3rd Viscount ChandosAshley Huggins, 3rd Viscount MalvernPhilip Sidney, 2nd Viscount De L'IsleChristopher Monckton, 3rd Viscount Monckton of BrenchleyTimothy Lloyd George, 4th Viscount TenbyClive Mackintosh, 3rd Viscount Mackintosh of HalifaxAndrew Morrison, 3rd Viscount DunrossilJames Stuart, 3rd Viscount Stuart of FindhornJonathan Kemp, 3rd Viscount RochdaleMark Slim, 3rd Viscount SlimRichard Head, 2nd Viscount HeadSimon Lennox-Boyd, 2nd Viscount Boyd of MertonChristopher Mills, 3rd Viscount MillsCaspar Hare, 3rd Viscount BlakenhamJohn Eccles, 2nd Viscount EcclesJames Manningham-Buller, 3rd Viscount Dilhorne
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| Italics in entries mean the titleholder also holds a previously listed viscountcy of greater precedence | 
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