Barons Chatham in the Peerage of Great Britain (1761-1835)
Earls of Chatham in the Peerage of Great Britain (1766-1835)
1st Baroness Chatham
- Lady Hester Grenville, (1720–1803) Countess of Chatham and 1st Baroness Chatham in her own right, daughter of Richard Grenville and Hester Temple, 1st Countess Temple, wife of William Pitt, 1st Earl of Chatham.
Earls of Chatham
- William Pitt, (1708–1778) 1st Earl of Chatham, Viscount Pitt. Known as William Pitt, the Elder.
- John Pitt, (1756–1835) 2nd Earl of Chatham, 2nd Baron Chatham, KG, elder brother of William Pitt, the Younger (1759-1806), Prime Minister of Great Britain.
Barons Camelford in the Peerage of Great Britain ( 1784-1804)
Barons Camelford
- Thomas Pitt, (1737–1793) 1st Baron Camelford, son of Thomas Pitt of Boconnoc, the great-grandson of Thomas Pitt, the great-nephew of Thomas Pitt, 1st Earl of Londonderry, the nephew of William Pitt, 1st Earl of Chatham.
- Thomas Pitt, (1775–1804) 2nd Baron Camelford.
Earls of Londonderry in the Peerage of Ireland (1726-1765)
Earls of Londonderry
- Thomas Innes Pitt, (d. 1729) 1st Earl of Londonderry, Viscount Gallen-Ridgeway, second son of Thomas Pitt of Boconnoc and married Lady Frances Ridgeway, daughter of Robert Ridgeway, 4th Earl of Londonderry.
- Thomas Pitt, (d. 1734) 2nd Earl of Londonderry.
- Ridgeway Pitt, (1722–1765) 3rd Earl of Londonderry
Baron Rivers of Stratfield-Saye in the Peerage of Great Britain (1776-1828)
Barons Rivers of Sudeley Castle in the Baronetage of the United Kingdom (1802-1880)
This family was the senior branch of the Pitts, but distantly related.
Barons Rivers of Stratfield-Saye
- George Pitt, (1721–1803) 1st Baron Rivers of Stratfield-Saye and 1st Baron Rivers of Sudeley Castle The Barony Rivers of Sudeley Castle created with a remainder, failing heirs male of his body, "to his brother Sir William Augustus Pitt KB and the heirs male of his body, in default of which, to William Horace Beckford, Esq., son of Peter Beckford by his late wife, daughter of the said George, Lord Rivers, and the heirs male of his body"
- George Pitt, (1751–1828) 2nd Baron Rivers of Stratfield-Saye and 2nd Baron Rivers of Sudeley Castle.
Barons Rivers of Sudeley Castle
- William Horace Beckford later Pitt-Rivers, (1777–1831) 3rd Baron Rivers of Sudeley Castle.
- George Pitt-Rivers, (1810–1866) 4th Baron Rivers of Sudeley Castle.
- Henry Peter Pitt-Rivers, (1849–1867) 5th Baron Rivers of Sudeley Castle.
- Horace Pitt-Rivers, (1814–1880) 6th Baron Rivers of Sudeley Castle.