|  | Godwin c. 1001–1053 Earl of Wessex | 
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| Earl of Hereford (1st creation), 1043 |  | Earl of Hereford (3rd creation), 1058 |  |  |  |  |  |  |  |  |  | Earl of Hereford (2nd creation), 1052 |  | Earl of Hereford (4th creation), 1067 | 
Sweyn Godwinson 1020–1052 Earl of Hereford |  | Harold Godwinson (c. 1022–1066) Earl of Hereford, King of the English |  | William de Mandeville (d. before 1130) |  |  |  |  |  | Ralph the Timid d. 1057 Earl of Hereford |  | William FitzOsbern 1011–1071 1st Earl of Hereford | 
| Earldom of Hereford (1st creation) forfeit, 1051 |  | Earldom of Hereford (3rd creation) extinct, 1066 |  |  |  |  |  |  |  |  |  |  |  | Earldom of Hereford (2nd creation) extinct, 1057 |  |  |  |  |  | 
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 |  |  |  |  |  |  |  |  |  |  |  |  | Earl of Essex (1st creation), 1140 |  |  |  |  |  |  |  |  |  |  | Earl of Hereford (5th creation), 1141 | 
 |  |  |  | William de Say I |  | Beatrice ("Beatrix") de Say d. 1197 |  | Geoffrey de Mandeville d. 1144 1st Earl of Essex |  |  |  |  |  | Roger de Breteuil 1058– after 1087 2nd Earl of Hereford |  | Miles of Gloucester d. 1143 1st Earl of Hereford | 
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 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Earldom of Hereford (4th creation) forfeit, 1074 |  |  |  |  |  | 
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 |  |  |  | William de Say II d. 1184 |  | Geoffrey de Saye I d. 1214 |  | Geoffrey de Mandeville d. 1166 2nd Earl of Essex |  | William de Mandeville d. 1189 3rd Earl of Essex |  | Margaret of Hereford 1122/1123–1197 |  | Roger Fitzmiles before 1125–1155 2nd Earl of Hereford | 
 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Earldom of Essex (1st creation) extinct, 1189 |  |  |  |  |  |  | Earldom of Hereford (5th creation) extinct, 1155 | 
| Earl of Essex (2nd creation), 1199 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
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Geoffrey Fitz Peter c. 1162–1213 1st Earl of Essex |  | Beatrice de Say |  | Geoffrey de Saye II 1155–1230 |  | Hawise ("Alice") de Clare |  | Humphrey III de Bohun before 1144–1181 | 
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 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Earl of Hereford (6th creation), 1199 | 
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 |  |  |  | Geoffrey FitzGeoffrey de Mandeville c. 1191–1216 2nd Earl of Essex |  | William FitzGeoffrey de Mandeville d. 1227 3rd Earl of Essex |  | Maud FitzGeoffrey Maud de Mandeville |  | Henry de Bohun 1176–1220 1st Earl of Hereford | 
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 |  |  |  |  |  |  |  | Earldom of Essex (2nd creation) extinct, 1227 |  |  |  |  |  |  |  |  | 
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 |  |  |  |  |  |  |  |  |  |  |  | Earl of Essex (3rd creation), 1239 | 
 |  |  |  |  |  |  |  |  |  |  |  | Humphrey de Bohun 1204–1275 1st Earl of Essex, 2nd Earl of Hereford |  | 
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 |  |  |  |  |  |  |  |  |  |  |  | Humphrey de Bohun d. 1265 |  | 
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 |  |  |  | Edward I 1239–1307 King of England |  |  |  |  |  | Humphrey de Bohun c. 1249–1298 2nd Earl of Essex, 3rd Earl of Hereford | 
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 |  |  |  | Edward II 1284–1327 King of England |  | Elizabeth of Rhuddlan 1282–1316 |  | Humphrey de Bohun 1276–1322 3rd Earl of Essex, 4th Earl of Hereford | 
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 |  |  |  | Edward III 1312–1377 King of England |  | John de Bohun 1306–1336 4th Earl of Essex, 5th Earl of Hereford |  | Humphrey de Bohun 1309–1361 5th Earl of Essex, 6th Earl of Hereford |  | William de Bohun c. 1312–1360 1st Earl of Northampton | 
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 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Humphrey de Bohun 1342–1373 6th Earl of Essex, 7th Earl of Hereford | 
 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Earldom of Essex (3rd creation) and Earldom of Hereford (6th creation) extinct, 1373 | 
 |  |  |  | Earl of Essex (4th creation), 1376 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
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 |  |  |  | Thomas of Woodstock 1355–1397 Earl of Essex |  | Eleanor de Bohun c. 1366–1399 |  |  |  |  |  | Mary de Bohun c. 1369/1370–1394 |  | Henry IV 1367–1413 King of England | 
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 |  |  |  | Earldom of Essex (4th creation) forfeit, 1397 |  |  |  | 
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 |  |  |  | William Bourchier 1374–1420 |  | Anne of Gloucester 1383–1438 | 
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 |  |  |  | Earl of Essex (5th creation), 1461 | 
 |  |  |  | Henry Bourchier c. 1404/1406–1483 1st Earl of Essex | 
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 |  |  |  | William Bourchier d. 1480 Viscount Bourchier |  | Anne Woodville 1438–1489 |  | Elizabeth Woodville c. 1437–1492 |  | Edward IV 1442–1483 King of England | 
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John Devereux c. 1464–1501 9th Baron Ferrers of Chartley |  | Cecily Bourchier (died c. 1492/1493) |  | Henry Bourchier c. 1467/80–1540 2nd Earl of Essex |  |  |  |  |  | Elizabeth of York 1466–1503 |  | Thomas Parr 1478–1517 | 
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 |  |  |  |  |  |  |  |  | Earldom of Essex (5th creation) forfeit 1540 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| Viscount Hereford |  |  |  |  |  |  |  |  |  | Earl of Essex (6th creation), 1540 |  |  |  |  |  |  |  |  |  |  |  |  | 
Walter Devereux 1488–1558 1st Viscount Hereford, 10th Baron Ferrers of Chartley |  |  |  |  |  |  |  |  |  | Thomas Cromwell 1485–1540 Earl of Essex |  | Henry VIII 1491–1547 King of England |  |  |  |  |  |  |  |  |  |  |  | 
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 |  |  |  |  |  |  |  |  |  |  |  |  |  | Earldom of Essex (6th creation) forfeit, 1540 |  |  |  |  |  |  |  |  |  |  |  | Earl of Essex (7th creation), 1543 | 
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Richard Devereux c. 1513–1547 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Catherine Parr 1512–1548 |  | William Parr 1513–1571 Marquess of Northampton, Earl of Essex | 
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 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Earldom of Essex (7th creation) forfeit 1553, restored 1559, extinct 1571 | 
| Earl of Essex (8th creation), 1572 |  |  |  |  |  | Devereux Baronet of Castle Bromwich, 1611 | 
Walter Devereux 1541–1576 1st Earl of Essex, 2nd Viscount Hereford |  |  |  |  |  | Edward Devereux c. 1550–1622 1st Baronet | 
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Robert Devereux 1565–1601 2nd Earl of Essex, 3rd Viscount Hereford |  |  |  |  |  |  |  |  |  | Walter Devereux 1578–1658 5th Viscount Hereford, 2nd Baronet |  |  |  |  |  | George Devereux c. 1581–1665 | 
| Earldom of Essex forfeit, 1601 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
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| Earldom of Essex (8th creation) restored, 1604 |  | Baron Capell of Hadham, 1641 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
Robert Devereux 1591–1646 3rd Earl of Essex, 4th Viscount Hereford |  | Arthur Capell 1604–1649 1st Baron Capell of Hadham |  |  |  |  |  | Leicester Devereux 1617–1676 6th Viscount Hereford, 3rd Baronet |  |  |  |  |  |  |  |  |  | 
| Earldom of Essex (8th creation) extinct, 1646 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
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 |  |  |  | Earl of Essex (9th creation) and Viscount Malden, 1661 |  | Baron Capell of Tewkesbury in the County of Gloucester, 1692 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
 |  |  |  | Arthur Capell 1631–1683 2nd Baron Capell of Hadham 1st Earl of Essex and Viscount Malden |  | Henry Capell 1638–1696 Baron Capell of Tewkesbury |  |  |  |  |  |  |  |  |  |  |  | Price Devereux c. 1637–1673 |  | Vaughan Devereux d. 1700 | 
 |  |  |  |  |  |  |  |  | Barony Capell of Tewkesbury extinct, 1696 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
 |  |  |  | Algernon Capell 1670–1710 2nd Earl of Essex and Viscount Malden |  |  |  |  |  | Leicester Devereux 1674–1683 7th Viscount Hereford, 4th Baronet |  | Edward Devereux 1675–1700 8th Viscount Hereford, 5th Baronet |  | Price Devereux 1664–1740 9th Viscount Hereford, 6th Baronet |  | Arthur Devereux d. 1711 | 
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 |  |  |  | William Capell 1697–1743 3rd Earl of Essex and Viscount Malden |  |  |  |  |  |  |  |  |  |  |  |  |  | Price Devereux 1694–1748 10th Viscount Hereford, 7th Baronet |  | Edward Devereux c. 1710–1760 11th Viscount Hereford, 8th Baronet | 
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Frances Hanbury-Williams c. 1735–1759 |  | William Capell 1732–1799 4th Earl of Essex and Viscount Malden |  | Harriet Bladen 1735–1821 |  |  |  |  |  |  |  |  |  | Edward Devereux 1740–1783 12th Viscount Hereford, 9th Baronet |  | George Devereux 1744–1804 13th Viscount Hereford, 10th Baronet | 
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 |  |  |  | George Capel-Coningsby 1757–1839 5th Earl of Essex and Viscount Malden |  | John Thomas Capell 1769–1819 |  |  |  |  |  |  |  |  |  |  |  |  |  | Henry Fleming Lea Devereux 1777–1843 14th Viscount Hereford, 11th Baronet | 
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Arthur Algernon Capell 1803–1892 6th Earl of Essex and Viscount Malden |  | Algernon Capell 1807–1886 |  | Adolphus Capell 1813–1899 |  |  |  |  |  |  |  |  |  | Henry Devereux 1807–1839 |  | Robert Devereux 1809–1855 15th Viscount Hereford, 12th Baronet | 
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Arthur de Vere Capell 1826–1879 styled Viscount Malden |  | Charles Capell 1845–1924 |  | Horatio Bladen Capell 1839–1933 |  |  |  |  |  |  |  |  |  |  |  |  |  | Robert Devereux 1843–1930 16th Viscount Hereford, 13th Baronet | 
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George Devereux de Vere Capell 1857–1916 7th Earl of Essex and Viscount Malden |  | Arthur Algernon de Vere Capell 1891–1950 |  | Horace Charles George Arthur Capell 1868–1953 |  | Algernon Essex Capell 1869–1952 |  | Henry Addison Devereux Capell 1873–1925 |  |  |  |  |  | Robert Charles Devereux 1865–1952 17th Viscount Hereford, 14th Baronet | 
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Algernon George de Vere Capell 1884–1966 8th Earl of Essex and Viscount Malden |  |  |  |  |  |  | Bladen Ozro Capell 1897–1959 |  | Algernon Arthur Capell |  | Robert Capell Sixth in line to the Earldom of Essex |  |  |  |  |  | Robert Devereux 1894–1934 |  | 
 |  |  |  |  | Earldom of Essex (9th creation) revived, 1989 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
Reginald George de Vere Capell 1906–1981 9th Earl of Essex and Viscount Malden |  | Robert Edward de Vere Capell 1920–2005 10th Earl of Essex and Viscount Malden |  | Bladen Horace Capell 1922–1978 |  | Colin Capell |  |  |  |  |  |  |  |  |  | Robert Milo Leicester Devereux 1932–2004 18th Viscount Hereford, 15th Baronet | 
| Earldom of Essex (9th creation) dormant, 1981 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
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 |  |  |  | Frederick Paul de Vere Capell b. 1944 11th Earl of Essex and Viscount Malden |  |  b. 1952 Heir presumptive to the Earldom of Essex |  | Clint Capell Third in line to the Earldom of Essex |  | Craig Capell Fourth in line to the Earldom of Essex |  |  |  |  |  |  |  |  |  | 
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 |  |  |  |  |  |  |  | Kevin Capell b. 1982 Second in line to the Earldom of Essex |  |  |  |  |  | Dylan Capell Fifth in line to the Earldom of Essex |  |  |  |  |  | Charles Robin de Bohun Devereux b. 1975 19th Viscount Hereford, 16th Baronet | 
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 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Henry Devereux b. 2015 | 
 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Heir apparent to the Hereford Viscountcy |