Barons Ferrers of Groby in the Peerage of England (1300-1554)
Earl of Huntingdon in the Peerage of England (1471-1475)
Marquesses of Dorset in the Peerage of England (1475-1554)
Barons Harington in the Peerage of England (1324, from 1529-1554)
Barons Bonville in the Peerage of England (1449, from 1529-1554)
Duke of Suffolk in the Peerage of England (1551-1554)
- William Ferrers, 1st Baron Ferrers of Groby (1270–1325)
- Henry Ferrers, 2nd Baron Ferrers of Groby (1303–1343)
- William Ferrers, 3rd Baron Ferrers of Groby (1333–1372)
- Henry Ferrers, 4th Baron Ferrers of Groby (1356–1388)
- William Ferrers, 5th Baron Ferrers of Groby (1373–1445)
- Elizabeth Grey, Baroness Ferrers of Groby (1419–1483) married Edward Grey, 6th Baron Ferrers of Groby (c. 1415–1457) was summoned to parliament in right of his wife. Descended from a cadet of Barons Grey de Ruthyn.
- Sir John Grey of Groby (c. 1432-1461) son of Elizabeth Ferrers, Lady Ferrers of Groby (1419-1483) and of Sir Edward Grey (c. 1415–1457) married Elizabeth Woodville (1437-1492) later wife of Edward IV, King of England.
1st Marquess of Dorset KG
- Thomas Grey, 1st Marquess of Dorset, 1st Earl of Huntingdon, Baron Ferrers of Groby KG (1451–1501) Married Cecily Bonville, 7th Baroness Harington and 2nd Baroness Bonville (c. 1460–1529) Earldom of Huntingdon surrendered in 1475.
2nd Marquess of Dorset KG
- Thomas Grey, 2nd Marquess of Dorset, 3rd Baron Bonville, 8th Baron Harington KG (1477–1530)
1st Duke of Suffolk KG
- Henry Grey, 1st Duke of Suffolk, 3rd Marquess of Dorset, 4th Baron Bonville, 9th Baron Harington KG (1517–1554) (forfeit 1554) Lady Frances Brandon (1517-1559) 1st daughter and coheiress of Charles Brandon, 1st Duke of Suffolk, by his third wife the Princess Mary, Queen Dowager of France and 3rd daughter of King Henry VII, King of England.
Barons Grey of Groby in the Peerage of England (1603-1976)
Earls of Stamford in the Peerage of England (1628-1976)
Earls of Warrington in the Peerage of Great Britain, second creation (1796-1883)
1st Baron Grey of Groby
- Henry Grey, 1st Baron Grey of Groby (d. 1614) grandson of Thomas Grey, 2nd Marquess of Dorset. The family also claimed the attainted baronies of Bonville and Harington until they went into abeyance on the death of 7th Earl of Stamford.
Earls of Stamford
- Henry Grey, 1st Earl of Stamford, 2nd Baron Grey of Groby (c. 1600–1673)
2nd Earl of Stamford
- Thomas Grey, 2nd Earl of Stamford (c. 1653–1720)
- Harry Grey, 3rd Earl of Stamford (1685–1739)
- Harry Grey, 4th Earl of Stamford (1715–1768) married Lady Mary Booth, only daughter and heir of George Booth, 2nd Earl of Warrington of the first creation.
Earls of Stamford and Warrington
- George Harry Grey, 5th Earl of Stamford, 1st Earl of Warrington and Baron Delamer (1737–1819)
- George Harry Grey, 6th Earl of Stamford, 2nd Earl of Warrington (1765–1845)
- George Harry Grey, 8th Baron Grey of Groby (1802-1835) summoned to Parliament in 1833 in his father's Barony of Grey of Groby, by writ of acceleration.
- George Harry Grey, 7th Earl of Stamford, 3rd Earl of Warrington (1827–1883) On his death the Barony of Delamer and the Earldom of Warrington became extinct.
Last Earls of Stamford
- Harry Grey, 8th Earl of Stamford (1812–1890)
- William Grey, 9th Earl of Stamford (1850–1910)
- Roger Grey, 10th Earl of Stamford (1896–1976)
Barons Walsingham in the Peerage of Great Britain (1780)
Barons Walsingham
- William de Grey, 1st Baron Walsingham (1719–1781)
- Thomas de Grey, 2nd Baron Walsingham (1748–1818)
- George de Grey, 3rd Baron Walsingham (1776–1831)
- Thomas de Grey, 4th BarBaron Walsingham (1788–1839)
- Thomas de Grey, 5th Baron Walsingham (1804–1870)
- Thomas de Grey, 6th Baron Walsingham (1843–1919)
- John Augustus de Grey, 7th Baron Walsingham (1849–1929)
- George de Grey, 8th Baron Walsingham (1884–1965)
- John de Grey, 9th Baron Walsingham (b. 1925)