Half Third Cousin

1152 Marriage of Henry II and Eleanor of Aquitaine

1396 Marriage of Richard II and Isabella of Valois

1470 Marriage of Edward of Westminster to Anne Neville

1525 Knighting of Henry Fitzroy

Half Third Cousin is in Third Cousin and Above.

In or before 1147 Ranulf Gernon 4th Earl Chester 1099-1153 (48) and Matilda Fitzrobert Countess Chester -1189 were married. They were half third cousins. She a granddaughter of King Henry I "Beauclerc" England 1068-1135. She by marriage Countess Chester.

Marriage of Henry II and Eleanor of Aquitaine

On 18 May 1152 Whit Sunday Henry "Curtmantle" II King England 1133-1189 (19) and Eleanor of Aquitaine (30) were married at Poitiers Cathedral. They were half third cousins. He a grandson of King Henry I "Beauclerc" England 1068-1135.. They were more closely related than Eleanor and her previous husband Louis VII King Franks 1120-1180 (32). The marriage would bring the Kingdom of England, and the Duchies of Normandy and Aquitaine under the control of Henry "Curtmantle" II King England 1133-1189 (19).

On 28 Apr 1180 Philip Augustus II King France 1165-1223 (14) and Isabelle Flanders Queen Consort France 1170-1190 (10) were married. They were half third cousins. He a great x 2 grandson of William "Conqueror" I King England 1028-1087. She by marriage Queen_Consort_France.

In 1188 Ranulf de Blondeville Gernon 6th Earl Chester 1st Earl Lincoln 1170-1232 (18) and Constance Penthièvre Duchess Brittany 1161-1201 (27) were married. They were half third cousins. He a great x 2 grandson of King Henry I "Beauclerc" England 1068-1135. She a great x 2 granddaughter of King Henry I "Beauclerc" England 1068-1135. She by marriage Countess Chester.

In 1220 William Gerulfing I Count Holland 1167-1222 (53) and Marie Reginar Countess Holland 1190-1260 (30) were married. They were half third cousins. She a great granddaughter of Stephen I King England 1094-1154. She by marriage Countess Holland.

On 21 Jun 1221 Alexander II King Scotland 1198-1249 (22) and Joan Plantagenet Queen of Scotland 1210-1238 (10) were married. They were half third cousins. He a great x 2 grandson of King Henry I "Beauclerc" England 1068-1135. She a daughter of John "Lackland" King England 1166-1216. She by marriage Queen Consort Scotland.

On 27 May 1234 Louis IX King France 1214-1270 (20) and Margaret Provence Queen Consort France 1221-1295 (13) were married. They were half third cousins. He a great grandson of Henry "Curtmantle" II King England 1133-1189. She by marriage Queen_Consort_France.

In 1238 Simon de Montfort 6th Earl of Leicester 1208-1265 (30) and Eleanor Plantagenet Countess Pembroke Countess Leicester 1215-1275 (23) were married at Westminster Palace. They were half third cousins. He a great x 2 grandson of King Henry I "Beauclerc" England 1068-1135. She a daughter of John "Lackland" King England 1166-1216. She by marriage Countess of Leicester.

On 31 Jan 1246 Charles King Sicily 1227-1285 (18) and Beatrice Provence Queen Consort Sicily 1231-1267 (15) were married. They were half third cousins. He a great grandson of Henry "Curtmantle" II King England 1133-1189.

In 1249 Alfonso X King Castile X King Leon 1221-1284 (27) and Violante Barcelona Queen Consort Castile Queen Consort Leon were married. They were half third cousins. He a great x 2 grandson of Henry "Curtmantle" II King England 1133-1189.

Before 1250 Roger de Quincy 2nd Earl Winchester 1195-1264 and Helen Galloway Countess Winchester were married. They were half third cousins. She a great x 4 granddaughter of King Henry I "Beauclerc" England 1068-1135. She by marriage Countess Winchester.

On 06 Apr 1255 Theobald "Young" II King Navarre 1239-1270 (15) and Isabella Capet 1241-1271 (14) were married. They were half third cousins. He a great x 4 grandson of William "Conqueror" I King England 1028-1087. She a great x 2 granddaughter of Henry "Curtmantle" II King England 1133-1189.

In 1269 Henry I King Navarre 1244-1274 (25) and Blanche Capet Queen Navarre 1248-1302 (21) were married. They were half third cousins. He a great x 4 grandson of William "Conqueror" I King England 1028-1087. She a great x 2 granddaughter of Henry "Curtmantle" II King England 1133-1189.

On 26 Feb 1324 William Jülich V Duke Jülich 1299-1361 (25) and Joanna Hainault Duchess Guelders 1315-1374 (9) were married. They were half third cousins. He a great x 4 grandson of Stephen I King England 1094-1154. She a great x 5 granddaughter of Stephen I King England 1094-1154. She by marriage Duchess Guelders.

In 1325 John Bohun 5th Earl Hereford 4th Earl Essex 1307-1336 (18) and Alice Fitzalan Countess Essex Countess Hereford -1326 were married. They were half third cousins. He a grandson of Edward "Longshanks" I King England 1239-1307. She a great x 5 granddaughter of John "Lackland" King England 1166-1216. She by marriage Countess Essex, Earl Hereford 6C 1199.

On 05 Feb 1344 Richard Fitzalan 10th Earl Arundel 8th Earl Surrey 1306-1376 (38) and Eleanor Plantagenet Countess Arundel Countess Surrey 1318-1372 (25) were married at Ditton Church Stoke Poges. They were half third cousins. He a great x 5 grandson of John "Lackland" King England 1166-1216. She a great granddaughter of Henry III King England 1207-1272. She by marriage Countess Arundel Sussex.

Before 1352 Thomas Brewes 1301-1361 and Beatrice Mortimer 1322-1383 were married. They were half third cousins. She a great x 4 granddaughter of John "Lackland" King England 1166-1216.

On 19 Jun 1369 Philip "Bold" Valois II Duke Burgundy 1342-1404 (27) and Margaret Dampierre Duchess Burgundy 1348-1405 (21) were married. They were half third cousins. He a great x 5 grandson of Henry "Curtmantle" II King England 1133-1189. She a great x 2 granddaughter of Edward "Longshanks" I King England 1239-1307. She by marriage Duchess Burgundy.

Before 1371 John Dunbar 1st Earl Moray -1391 and Marjorie Stewart Countess Moray 1348-1417 were married. They were half third cousins. She a great x 4 granddaughter of John "Lackland" King England 1166-1216.

On 28 Oct 1371 Robert Ufford and Eleanor Fitzalan 1365-1375 (6) were married. They were half third cousins. He a great x 2 grandson of Edward "Longshanks" I King England 1239-1307. She a great x 2 granddaughter of Edward "Longshanks" I King England 1239-1307.

On 24 Jun 1380 John Hastings 3rd Earl Pembroke 1372-1389 (7) and Elizabeth Lancaster Duchess Exeter 1363-1426 (17) were married at Kenilworth Castle. They were half third cousins. He a great x 2 grandson of Edward "Longshanks" I King England 1239-1307. She a granddaughter of King Edward III England. She by marriage Countess Pembroke.

Before 01 Aug 1385 John Fitzalan 2nd Baron Maltravers 2nd Baron Arundel 1364-1390 and Elizabeth Despencer Baroness Zouche Harringworth Baroness Maltravers Baroness Arundel -1408 were married. They were half third cousins. He a great x 3 grandson of Henry III King England 1207-1272. She a great x 3 granddaughter of Edward "Longshanks" I King England 1239-1307. She by marriage Baroness Maltravers, Baron Arundel 1C 1377.

In 1387 William "Nithsdale" Douglas 1364-1392 (23) and Princess Egidia Stewart 1368-1388 (19) were married. They were half third cousins. She a great x 4 granddaughter of John "Lackland" King England 1166-1216.

Marriage of Richard II and Isabella of Valois

On 31 Oct 1396 Richard II King England 1367-1400 (29) and Isabella Valois Queen Consort England 1389-1409 (6) were married. They were half third cousins. He a grandson of King Edward III England. She a great x 5 granddaughter of Henry III King England 1207-1272.. The marriage being one of the terms of a twenty-eight year peace treaty with France. He twenty-nine, she six. The marriage sowed the seeds subsequent rebellion since there was no prospect of an heir to secure the Crown.

On 27 Nov 1397 John Beaufort 1st Marquess Somerset Dorset 1373-1410 (24) and Margaret Holland Duchess Clarence 1385-1439 (12) were married. They were half third cousins. He a grandson of King Edward III England. She a great x 2 granddaughter of Edward "Longshanks" I King England 1239-1307. She by marriage Countess Somerset.

In 1428 John Stanley 1423-1474 (5) and Cecilia Arderne 1423- (5) were married. They were half third cousins.

Before 1436 William Hay 1st Earl Erroll 1423-1462 (13) and Beatrice Douglas Countess Erroll were married. They were half third cousins. She by marriage Countess Erroll.

Before 29 Sep 1442 John Howard 1st Duke Norfolk 1425-1485 and Katherine Moleyns 1424-1465 were married. They were half third cousins. He a great x 4 grandson of Edward "Longshanks" I King England 1239-1307. She a great x 5 granddaughter of Henry III King England 1207-1272.

On 02 Jun 1446 William III Duke of Luxenburg 1425-1482 (21) and Anne Habsburg 1432-1462 (14) were married. They were half third cousins.

Around Jan 1450 John Pole 2nd Duke Suffolk 1442-1492 (7) and Margaret Beaufort Countess Richmond 1443-1509 (6) were married. They were half third cousins. He a great x 5 grandson of Edward "Longshanks" I King England 1239-1307. She a great x 2 granddaughter of King Edward III England.. The date subject to debate. Papal dispensation was granted on 18 August 1450. Margaret never recognised this marriage, and considered her next husband her first; as confirmed by her 1472 will.

Around 1510 Meynnart Wewyck Painter 1460-1525. Portrait of Margaret Beaufort Countess Richmond 1443-1509 in the Masters Lodge St John's College. Commissioned by John Fisher Bishop of Rochester 1469-1535. Note the Beaufort Arms on the wall beneath which is the Beafort Portcullis. Repeated in the window. She is wearing widow's clothes, or possibly that of a convent; Gabled Headress with Lappets. On 29 Mar 2019, St John's College, Cambridge, which she founded, announced the portrait was original work by Wewyck.

Before Feb 1458 John Pole 2nd Duke Suffolk 1442-1492 and Elizabeth York Duchess Suffolk 1444-1503 were married. They were half third cousins. He a great x 5 grandson of Edward "Longshanks" I King England 1239-1307. She a great x 2 granddaughter of King Edward III England. She by marriage Marchioness Suffolk 1C.

Before 1467 William Tailboys 7th Baron Kyme 1415-1464 and Elizabeth Bonville Baroness Kyme 1426-1491 were married. They were half third cousins. She a great x 5 granddaughter of Edward "Longshanks" I King England 1239-1307.

Before 1469 John Grey 8th Baron Grey Wilton 1448-1498 (21) and Anne Grey Baroness Grey Wilton 1450-1514 (19) were married. They were half third cousins. He a great x 3 grandson of King Edward III England. She a great x 3 granddaughter of King Edward III England. She by marriage Baroness Grey Wilton.

Marriage of Edward of Westminster to Anne Neville

On 13 Dec 1470 Edward of Westinster Prince of Wales 1453-1471 (17) and Anne Neville Queen Consort England 1456-1485 (14) were married at Angers Cathedral. They were half third cousins. He a son of Henry VI King England II King France 1421-1471. She a great x 3 granddaughter of King Edward III England. Anne Neville Queen Consort England 1456-1485 (14) by marriages Princess of Wales.

Before 1483 Ralph Eure 1464-1539 (19) and Muriel Hastings were married. They were half third cousins. He a great x 4 grandson of King Edward III England.

After 1483 Thomas Grey 2nd Marquess Dorset 1477-1530 and Eleanor St John Marchioness Dorset were married. They were half third cousins. He a great x 4 grandson of King Edward III England.

Before 1492 George Manners 11th Baron Ros Helmsley 1470-1513 and Anne St Leger Baroness Ros Helmsley 1476-1526 were married. They were half third cousins. She a great x 3 granddaughter of King Edward III England.

Before 1506 William Brereton 1473-1541 and Alice Savage 1472-1506 were married. They were half third cousins.

Around 1511 John Vere 14th Earl Oxford 1499-1526 (11) and Anne Howard Countess Oxford 1518-1559 were married. They were half third cousins. She by marriage Countess Oxford.

Before 1521 William Dacre 3rd Baron Dacre Gilsland 7th Baron Greystoke 1493-1563 and Elizabeth Talbot Baroness Dacre Gilsland 1507-1552 were married. They were half third cousins. He a great x 5 grandson of King Edward III England. She a great x 4 granddaughter of King Edward III England. She by marriage Baroness Dacre Gilsland.

On 30 Nov 1523 Francis Talbot 5th Earl Shrewsbury 5th Earl Waterford 1500-1560 (23) and Mary Dacre 1502-1538 (21) were married. They were half third cousins. He a great x 4 grandson of King Edward III England. She a great x 5 granddaughter of King Edward III England.

Knighting of Henry Fitzroy

Around 18 Jun 1525 Henry Clifford 2nd Earl Cumberland 1517-1570 (8) and Eleanor Brandon Countess Cumberland 1519-1547 (6) were married at Bridewell Palace. They were half third cousins. He a great x 5 grandson of King Edward III England. She a granddaughter of Henry VII King England and Ireland 1457-1509. Henry VIII King England and Ireland 1491-1547 (33) was present.

1563. Hans Eworth Painter 1520-1574. Portrait of either Eleanor Brandon Countess Cumberland 1519-1547 or her daughter Margaret Clifford Countess Derby 1540-1596.1536 Hans Holbein The Younger Painter 1497-1543. Portrait of Henry VIII King England and Ireland 1491-1547.1540 Hans Holbein The Younger Painter 1497-1543. Miniature portrait of Henry VIII King England and Ireland 1491-1547.Around 1525 Unknown Painter. Netherlands. Portrait of Henry VIII King England and Ireland 1491-1547.

Before 1534 Archibald Campbell 4th Earl Argyll 1507-1558 (27) and Helen Hamilton Countess Argyll were married. They were half third cousins. He a great x 5 grandson of King Edward III England. She a great x 5 granddaughter of King Edward III England. She by marriage Countess Argyll.

Before 1535 Richard Grosvenor 1480-1543 and Catherine Cotton 1490-1535 were married. They were half third cousins.

In or before 1540 Nicholas Pelham 1517-1560 (23) and Anne Sackville 1521-1595 (19) were married. They were half third cousins.

In 1557 John Arundell 1530-1590 (27) and Anne Stanley Baroness Stourton were married. They were half third cousins.

In Feb 1566 James "Lord Bothwell" Hepburn 1st Duke Orkney 1534-1578 (32) and Jean Gordon Countess Bothwell Countess Sutherland 1546-1629 (20) were married. They were half third cousins. He a great x 5 grandson of King Edward III England. She by marriage Countess Bothwell.

In 1567 Edward Hastings 1541-1603 (26) and Barbara Devereux 1544-1618 (23) were married. They were half third cousins.

On 13 Dec 1573 Alexander Gordon 12th Earl Sutherland 1552-1594 (21) and Jean Gordon Countess Bothwell Countess Sutherland 1546-1629 (27) were married. They were half third cousins. He a great x 5 grandson of King Edward III England. at Huntly Castle, Huntly.

Before Oct 1593 David Barry 5th Viscount Buttevant 1550-1617 and Ellen Roche Viscountess Buttivant -1599 were married. They were half third cousins. She by marriage Viscountess Buttevant.

On 27 May 1601 Edward Seymour 1st Earl Hertford 1539-1621 (62) and Frances Howard Duchess Lennox Duchess Richmond 1578-1639 (22) were married. They were half third cousins. He a great x 5 grandson of King Edward III England. She by marriage Countess Hertford.

Before 1636 Marcus Gheeraerts Painter 1562-1636. Portrait of Frances Howard Duchess Lennox Duchess Richmond 1578-1639.

After 05 Mar 1607 Robert Brudenell 2nd Earl Cardigan 1607-1703 and Mary Constable Countess Cardigan were married. They were half third cousins.

Before Jan 1637 John Constable 2nd Viscount Dunbar 1615-1688 and Mary Brudenell Viscountess Dunbar were married. They were half third cousins.

On 25 Jul 1646 Francis Scott 2nd Earl Buccleuch 1626-1651 (19) and Margaret Leslie Countess Buccleuch Countess Wemyss 1620-1688 (26) were married. They were half third cousins. She by marriage Countess Buccleuch.

In 1673 William Stanley 9th Earl Derby 1655-1702 (18) and Elizabeth Butler Countess Derby 1660-1717 (13) were married. They were half third cousins. He a great x 5 grandson of Henry VII King England and Ireland 1457-1509. She by marriage Countess Derby.

On 10 Oct 1675 Robert Ker 3rd Earl Roxburghe 1658-1682 (17) and Margaret Hay Countess Roxburghe -1753 were married. They were half third cousins. She by marriage Countess Roxburghe.

Around 1675 Gilbert Soest Painter 1605-1681. Portrait of Margaret Hay Countess Roxburghe -1753.

Before 1680 Robert Rich 2nd Baronet 1648-1699 (32) and Mary Rich 1659- (21) were married. They were half third cousins.

In 1683 Charles Howard 3rd Earl Carlisle 1669-1738 (14) and Anne Capell Countess Carlisle 1674-1752 (9) were married. They were half third cousins.

Before 07 Dec 1680 Peter Lely Painter 1618-1680. Portrait of Anne Capell Countess Carlisle 1674-1752.Around 1695. Michael Dahl Painter 1659-1743. Portrait of Anne Capell Countess Carlisle 1674-1752. Petworth House.Before 1744 Enoch "The Younger" Seeman Painter 1694-1744. Portrait of Anne Capell Countess Carlisle 1674-1752.

On 21 Jun 1688 William Cavendish 2nd Duke Devonshire 1672-1729 (16) and Rachel Russell Duchess Devonshire 1674-1725 (14) were married. They were half third cousins.

Before 04 Jun 1729 Charles Jervas Painter 1675-1739. Portrait of William Cavendish 2nd Duke Devonshire 1672-1729.Around 1695. Michael Dahl Painter 1659-1743. Portrait of Rachel Russell Duchess Devonshire 1674-1725.

On 28 Feb 1698 Algernon Capell 2nd Earl Essex 1670-1710 (27) and Mary Bentinck Countess Essex 1679-1726 (18) were married. They were half third cousins. She by marriage Countess Essex.

Around 1700 Godfrey Kneller Painter 1646-1723. Portrait of Mary Bentinck Countess Essex 1679-1726. One of the Hampton Court Beauties.

Before 29 Jun 1700 John Webb 2nd Baronet Webb -1700 and Mary Blomer Lady Webb -1709 were married. They were half third cousins. She by marriage Lady Webb of Odstock in Wiltshire.

Before 13 Jan 1707 Charles Boyle 4th Earl Cork 4th Earl Orrery 1674-1731 (32) and Elizabeth Cecil Countess Cork 1691-1708 (15) were married. They were half third cousins. She by marriage Countess Cork.

On 08 May 1708 Thomas Lyttelton 4th Baronet 1686-1751 (22) and Christian Temple Lady Lyttelton 1678-1748 (29) were married. They were half third cousins.

In 1718 William Widdrington 4th Baron Widdrington 1678-1743 (40) and Catherine Graham were married. They were half third cousins.

Before 24 Mar 1745 John Sackville 1713-1765 and Frances Leveson-Gower 1720-1788 were married. They were half third cousins.

On 12 Oct 1752 Lewis Watson 1st Baron Sondes 1728-1795 (23) and Grace Pelham Baroness Sondes 1735-1777 (17) were married. They were half third cousins.

On 21 Sep 1766 Walter Blount 6th Baronet -1785 and Mary Aston Lady Blount 1743-1805 (23) were married. They were half third cousins. She by marriage Lady Blount of Sodington.

On 15 Aug 1802 Aubrey Beauclerk 6th Duke St Albans 1765-1815 (36) and Louisa Grace Manners Duchess St Albans 1777-1816 (25) were married. They were half third cousins. He a great x 2 grandson of Charles II King England Scotland and Ireland 1630-1685. She by marriage Duchess St Albans.

In 1811 Arthur Blundell Sandys Trumbull Hill 3rd Marquess Downshire 1788-1845 (22) and Maria Windsor Marchioness Downshire 1790-1855 (21) were married. They were half third cousins. She by marriage Marchioness Downshire.

On 18 May 1818 Hugh Henry Seymour Conway 1790-1821 (27) and Charlotte Georgiana Cholmondeley 1795-1828 (23) were married. They were half third cousins. He a great x 3 grandson of James II King England Scotland and Ireland 1633-1701.

On 04 Feb 1869 Arthur Rice 6th Baron Dynevor 1836-1911 (33) and Selina Lascelles 1841-1889 (28) were married. They were half third cousins.

On 10 Apr 1875 Gerald Richard Brooke 1852-1891 (22) and Kathleen Maude -1939 were married. They were half third cousins.

On 28 Feb 1878 Captain Cornwallis Maude 1852-1881 (25) and Eva Henrietta Brooke -1940 were married. They were half third cousins.

On 29 Nov 1879 Alfonso XII King Spain 1857-1885 (22) and Maria Christina of Austria Queen Consort Spain 1858-1929 (21) were married at Madrid. They were half third cousins. She by marriage Queen Consort Spain.

On 27 Jul 1889 Alexander Duff 1st Duke Fife 1849-1912 (39) and Louise Windsor Duchess Fife 1867-1931 (22) were married. They were half third cousins. He a great grandson of William IV King United Kingdom 1765-1837. She a daughter of Edward VII King United Kingdom 1841-1910.

Before 17 Jan 1896 William Francis Leveson-Gower 1868-1949 (27) and Alice Susan Godolphin Osborne 1869-1951 (26) were married. They were half third cousins.

John Cockayne 1411-1504 and Agnes Vernon 1427-1451 were married. They were half third cousins.

William Douglas 3rd Duke Touraine 1424-1440 and Janet Lindsay Countess Wigtown 1427-1483 were married. They were half third cousins.

Peter Courtenay 1155-1218 and Yolanda Flanders 1175-1219 were married. They were half third cousins.

John Sinclair -1576 and Jean Hepburn -1599 were married. They were half third cousins. She a great x 5 granddaughter of King Edward III England.

John Livingston -1547 and Joanna Fleming were married. They were half third cousins. He a great x 5 grandson of King Edward III England. She a great x 5 granddaughter of King Edward III England.

George Seton 4th Lord Seton 1431-1507 and Margaret Campbell Lady Seton 1468-1481 were married. They were half third cousins.

William Livingstone 6th Lord Livingstone -1592 and Agnes Fleming -1597 were married. They were half third cousins. He a great x 5 grandson of King Edward III England. She a great x 5 granddaughter of King Edward III England.

Constantine Clifton 1372-1395 and Margaret Howard 1375-1434 were married. They were half third cousins. She a great x 3 granddaughter of John "Lackland" King England 1166-1216.

Rhys ap Tewdwr King Deheubarth 1064-1093 and Gwladys ferch Rhiwallon Mathrafal Queen Consort Deheubarth 1060-1137 were married. They were half third cousins.

Christopher Conyers 2nd Baron Conyers 1491-1538 and Anne Dacre Baroness Conyers 1501-1548 were married. They were half third cousins. He a great x 4 grandson of King Edward III England. She a great x 5 granddaughter of King Edward III England.

Robert Maxwell 6th Lord Maxwell -1552 and Beatrix Douglas Lady Maxwell were married. They were half third cousins. He a great x 5 grandson of King Edward III England. She a great x 5 granddaughter of King Edward III England. She by marriage Lord Maxwell.

Louis "Blind" Bivinids 883-928 and Adelaide Welf were married. They were half third cousins.

Charles Gerard and Penelope Fitton were married. They were half third cousins.

Prince Eitel Friedrich Hohenzollern 1883-1942 and Sophia Charlotte Oldenburg 1879-1964 were married. They were half third cousins. He a great grandson of Queen Victoria of the United Kingdom 1819-1901.

Henry Scrope 7th Baron Scrope Bolton 1482-1533 and Mabel Dacre Baroness Scrope Bolton 1490-1533 were married. They were half third cousins. He a great x 4 grandson of King Edward III England. She a great x 5 granddaughter of King Edward III England. She by marriage Baroness Scrope Bolton.