House of Cowper

Cowper of Ratling Court in the Baronetage of England (1642 to 1905)
Baron Cowper in the Peerage of England (1706 to 1905)
Earls Cowper in the Peerage of Great Britain (1718 to 1905)
Prince of Nassau d'Auverquerque in the Holy Roman Empire (1778 to 1905)
Barons Lucas of Crudwell in the Peerage of England (1663, from 1880 to 1905)
Lords Dingwall in the Peerage of Scotland (1609, from 1871 to 1905)
Baron Butler of Moore Park in the Peerage of England (1666, from 1871 to 1905)

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 Cowper of Ratling Court

  • Sir William Cowper, 1st Baronet (1582–1664)
  • Sir William Cowper, 2nd Baronet (1639–1706)

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1st Earl Cowper

  • William Cowper, 1st Earl Cowper, Viscount Fordwich, 1st Baron Cowper, 3rd Baronet (1665–1723) married Mary, daughter of John Clavering, of Chopwell

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2nd Earl Cowper

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3rd to 6th Earls Cowper

  • George Nassau Clavering-Cowper, 3rd Earl Cowper, 1st Prince of Nassau d'Auverquerque (1738–1789)
  • George Augustus Clavering-Cowper, 4th Earl Cowper, 2nd Prince of Nassau d'Auverquerque (1776–1799)
  • Peter Leopold Louis Francis Nassau Clavering-Cowper, 5th Earl Cowper, 3rd Prince of Nassau d'Auverquerque (1778–1837)
  • George Augustus Frederick Cowper, 6th Earl Cowper, 4th Prince of Nassau d'Auverquerque (1806–1856) married Lady Anne Florence de Grey, 7th Baroness Lucas

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7th Earl Cowper KG

  • Francis Thomas de Grey Cowper, 7th Earl Cowper, 5th Prince of Nassau d'Auverquerque, 8th Baron Lucas and 4th Lord Dingwall, 3rd Baron Butler KG (1834–1905)

Barons Mount Temple in the Peerage of the United Kingdom, First creation (1880 to 1888)

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1st Baron Mount Temple

  • William Francis Cowper-Temple, 1st Baron Mount Temple (1811–1888) second son of Peter Clavering-Cowper, 5th Earl Cowper and the Honourable Emily Lamb, sister of William Lamb, 2nd Viscount Melbourne. Emily married as her second husband Henry Temple, 3rd Viscount Palmerston.

Baron Butler of Moore Park in the Peerage of England (1666, attainted 1715, reversed in 1871, abeyant 1905)

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Duke of Ormonde

  • Thomas Butler, 6th Earl of Ossory, 1st Baron Butler (1634–1680).
  • James Butler, 2nd Duke of Ormonde, 2nd Baron Butler (1665–1745), attainted 1715.
  • Francis Thomas de Grey Cowper, 7th Earl Cowper, 3rd Baron Butler, great-great-great-great-grand-nephew of 2nd Duke of Ormonde (1834–1905)

Lords Dingwall in the Peerage of Scotland (1609, attainted 1715, reversed in 1871)

  • Richard Preston, 1st Earl of Desmond, 1st Lord Dingwall (d. 1628)
  • Elizabeth Preston, Duchess of Ormonde, 2nd Lady Dingwall (1615–1684)
  • James Butler, 2nd Duke of Ormonde, 3rd Lord Dingwall (1665–1745) (attainted 1715)
  • Francis Thomas de Grey Cowper, 7th Earl Cowper, 8th Baron Lucas and 4th Lord Dingwall KG (1834–1905)
  • Auberon Thomas Herbert, 9th Baron Lucas and 5th Lord Dingwall, son of Lady Florence, daughter of George Cowper, 6th Earl Cowper. (1876–1916)
  • Nan Ino Cooper nee Herbert, 10th Baroness Lucas and 6th Lady Dingwall (1880–1958)
  • Anne Rosemary Palmer, 11th Baroness Lucas and 7th Lady Dingwall (1919–1991)
  • Ralph Matthew Palmer, 12th Baron Lucas and 8th Lord Dingwall (b. 1951)

Earl of Grantham in the Peerage of England (1698 to 1754)

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1st Earl of Grantham


Barons Mount Temple in the Peerage of the United Kingdom, Second creation (1932 to 1939)

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1st Baron Mount Temple

  • Wilfrid William Ashley, 1st Baron Mount Temple (1867–1939) great-nephew of Francis Cowper-Temple, 1st Baron Mount Temple


Viscounts Palmerston in the Peerage of Ireland (1723 to 1865)

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Viscounts Palmerston