Baron Masham is a title that has been created three times, once in thePeerage of Great Britain and twice in thePeerage of the United Kingdom. It was first created in the Peerage of Great Britain in 1712 when the courtierSamuel Masham was madeBaron Masham, of Otes. In 1723 he also succeeded as fourth Baronet of High Lever. The barony became extinct on the death of the second Baron in 1776. TheMasham baronetcy, ofHigh Lever in the County ofEssex, had been created byJames I in theBaronetage of England on 20 December 1621 forSamuel Masham. The third Baronet wasMember of Parliament forEssex. The baronetcy became extinct along with the barony in 1776.^[1]

It was created for a second time in the Peerage of the United Kingdom in 1891, when the industrialistSamuel Lister was madeBaron Masham, of Swinton in the County of York. This creation became extinct upon the death of the third Baron in 1924.

It was created for at third time in the Peerage of the United Kingdom in 1955 when theConservative politicianPhilip Cunliffe-Lister, 1st Viscount Swinton, was madeBaron Masham, of Ellington in the County of York. He was createdEarl of Swinton at the same time. Born Philip Lloyd Grame, he was the husband of Mary Constance Cunliffe-Lister, granddaughter of the first Baron of the 1891 creation, and had assumed the surname of Cunliffe-Lister in 1924 when his wife succeeded to the substantial Masham estates.Susan Cunliffe-Lister, wife of the second Earl of Swinton, was created alife peer asBaroness Masham of Ilton in her own right in 1970.

Note: there is an older, separate titleBaron Scrope of Masham that belongs to theScrope family. It is inabeyance since 1517.

• Sir William Masham, 1st Baronet (c. 1592 – c. 1656)
  • William Masham
• Sir William Masham, 2nd Baronet (d. c. 1663)
• Sir Francis Masham, 3rd Baronet (c. 1646 – 1723)
• Sir Samuel Masham, 4th Baronet (c. 1679 – 1758) (createdBaron Masham in 1712)

• Samuel Masham, 1st Baron Masham (c. 1679 – 1758)
  • Abigail Masham, Baroness Masham (c. 1670 – 1734), his wife and favourite ofQueen Anne
• Samuel Masham, 2nd Baron Masham (1712–1776)

• Samuel Cunliffe Lister, 1st Baron Masham (1815–1906)
• Samuel Cunliffe Lister, 2nd Baron Masham (1857–1917)
• John Cunliffe Lister, 3rd Baron Masham (1867–1924)

• seeEarl of Swinton

• Kidd, Charles, Williamson, David (editors).Debrett's Peerage and Baronetage (1990 edition). New York: St Martin's Press, 1990.
• Leigh Rayment's Peerage Pages^{[self-published source][better source needed]}

• Extinct baronies in the Peerage of Great Britain
• Baronies in the Peerage of the United Kingdom
• Extinct baronies in the Peerage of the United Kingdom
• Noble titles created in 1712
• Noble titles created in 1891
• Noble titles created in 1955
• Peerages created for UK MPs

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