William Cavendish, 4th Duke of Devonshire

The Most Noble William Cavendish, 4th Duke of Devonshire, K.G. P.C.
*Baptised: 1 June 1720
*Died: 2 October 1764
==Known as==
*1720-1729: The Hon. William Cavendish, commonly called Lord Cavendish
*1729-1741: The Hon. William Cavendish, commonly called Marquess of Hartington
*1741-1751: The Hon. William Cavendish, commonly called Marquess of Hartington, M.P.
*1751-1755: The Lord Cavendish, commonly called Marquess of Hartington
*1751-1755: The Lord Cavendish, commonly called Marquess of Hartington, P.C.
*1755-1756: The Duke of Devonshire, P.C.
*1756-1764: The Duke of Devonshire, K.G., P.C.
==Education==
*At home
==Offices==
*Master of the Horse, 1750-1755
*Lord Lieutenant of Ireland, 1755-1756
*First Lord of the Treasury, 1756-1757
*Lord Chamberlain, 1757-1762
==Lord Lieutenancies==
*Lord Lieutenant of Derbyshire, 1756-1764
==Peerage Titles==
===By writ of acceleration===
*Baron Cavendish of Hardwicke, 1751
===By inheritance===
*Duke of Devonshire, Marquess of Hartington, Earl of Devonshire, 1755
==Chivalric Orders==
*Knight of the Garter, 1756
==Privy Council==
*Privy Councillor, 1751
*Privy Councillor in Ireland, 1761
==Parliamentary Positions==
*Member of Parliament for Derbyshire, 1741-1751
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Cavendish, William, 4th Duke of Devonshire
Cavendish, William, 4th duke of Devonshire