Married Half Third Cousin Twice Removed

In 1028 Baldwin "The Good" V Count Flanders [aged 15] and Adela Capet Duchess Normandy [aged 19] were married. She the daughter of Robert "Pious" II King of the Franks [aged 55] and Constance Arles Queen Consort France [aged 42]. He the son of Baldwin "Bearded" IV Count Flanders [aged 48] and Ogive Luxemburg Countess Flanders. They were half third cousin twice removed.

Before 1047 Eustace II Count Boulogne [aged 31] and Goda aka Godgifu Countess Boulogne [aged 42] were married. She by marriage Countess Boulogne. She the daughter of King Æthelred II of England and Emma aka Ælfgyfu of Normandy Queen Consort England [aged 61]. He the son of Eustace Flanders I Count Boulogne and Matilda Reginar Countess Boulogne. They were half third cousin twice removed.

Around 1114 Robert de Clare [aged 50] and Maud Senlis were married. She the daughter of Simon Senlis 1st Earl of Northampton, Earl of Huntingdon and Maud Queen Consort Scotland [aged 40]. They were half third cousin twice removed.

On 1st February 1168 Henry "Lion" Welf XII Duke Saxony III Duke Bavaria [aged 39] and Matilda Plantagenet Duchess Saxony [aged 12] were married. She by marriage Duchess Bavaria, Duchess Saxony. The difference in their ages was 27 years. She the daughter of King Henry "Curtmantle" II of England [aged 34] and Eleanor of Aquitaine Queen Consort Franks and England [aged 46]. He the son of Henry "Proud" Welf X Duke Bavaria and Gertrude Süpplingenburg Duchess Bavaria. They were half third cousin twice removed.

On 6th May 1192 Henry of Champagne [aged 25] and Isabella Anjou Queen Jerusalem [aged 20] were married eight days after the assassination of her husband Conrad of Montferrat [deceased]. She the daughter of Almaric I King Jerusalem and Maria Komnenos Queen Jerusalem [aged 38]. He the son of Henry Blois I Count Champagne and Marie Capet Countess Champagne [aged 47]. They were half third cousin twice removed. He a great x 2 grandson of King William "Conqueror" I of England.

Before 1226 William Ferrers 5th Earl of Derby [aged 32] and Sibyl Marshal [aged 24] were married. She the daughter of William Marshal 1st Earl Pembroke and Isabel Clare Countess Pembroke. He the son of William Ferrers 4th Earl of Derby [aged 57] and Agnes Gernon Countess Derby. They were half third cousin twice removed. He a great x 3 grandson of King Henry I "Beauclerc" England.

In or before 1279 Louis Brienne Viscount Beaumont [aged 51] and Agnes Beaumont Sarthe were married. He the son of John de Brienne I King Jerusalem and Beregaria Ivrea. They were half third cousin twice removed. He a great x 2 grandson of King Henry "Curtmantle" II of England. She a great x 2 granddaughter of King Henry I "Beauclerc" England.

Around 1288 Hugh Audley 1st Baron Audley of Stratton Audley [aged 21] and Iseult Mortimer were married. They were half third cousin twice removed. He a great x 2 grandson of King Henry "Curtmantle" II of England. She a great x 3 granddaughter of King John of England.

Before 11th March 1290 Robert Fitzwalter 1st Baron Fitzwalter [aged 43] and Eleanor Ferrers Baroness Fitzwalter were married. She the daughter of Robert Ferrers 6th Earl of Derby and Eleanor Bohun Countess Derby [aged 47]. They were half third cousin twice removed. He a great grandson of King Henry "Curtmantle" II of England. She a great x 5 granddaughter of King Henry I "Beauclerc" England.

On 9th July 1290 John "Peaceful" Reginar II Duke Brabant [aged 14] and Margaret Plantagenet Duchess Brabant [aged 15] were married. She the daughter of King Edward I of England [aged 51] and Eleanor of Castile Queen Consort England [aged 49]. He the son of John Reginar I Duke Brabant [aged 37] and Margaret Dampierre Duchess Brabant. They were half third cousin twice removed. He a great x 4 grandson of King Stephen I England.

In or before 1315 Robert Fitzwalter 2nd Baron Fitzwalter [aged 14] and Joan de Multon Baroness Fitzwalter [aged 10] were married. They were half third cousin twice removed. He a great x 2 grandson of King Henry "Curtmantle" II of England.

Before 24th June 1340 John Mowbray 3rd Baron Mowbray [aged 29] and Joan Plantagenet Baroness Mowbray [aged 28] were married. She by marriage Baroness Mowbray. She the daughter of Henry Plantagenet 3rd Earl of Leicester 3rd Earl Lancaster [aged 59] and Maud Chaworth. They were half third cousin twice removed. He a great x 4 grandson of King Henry "Curtmantle" II of England. She a great granddaughter of King Henry III of England.

After 21st September 1369 Thomas Harcourt [aged 26] and Maud Grey [aged 41] were married. They were half third cousin twice removed. She a great x 4 granddaughter of King Henry "Curtmantle" II of England.

On 21st September 1371 John of Gaunt 1st Duke Lancaster [aged 31] and Constance of Castile Duchess of Lancaster [aged 17] were married at Roquefort, Landes. She by marriage Duchess Lancaster. His younger brother Edmund of Langley 1st Duke of York [aged 30] married Constance's sister in July 1372. An example of Marriage of Two Sets of Siblings. She the illegitmate daughter of Peter "Cruel" I King Castile and Maria Padilla. He the son of King Edward III of England [aged 58] and Philippa of Hainaut Queen Consort England. They were half third cousin twice removed.

On 11th July 1372 Edmund of Langley 1st Duke of York [aged 31] and Isabella of Castile Duchess York [aged 17] were married at Wallingford, Oxfordshire [Map]. She by marriage Countess Cambridge. She being the younger sister of Constance [aged 18] who had married Edmund's older brother John of Gaunt 1st Duke Lancaster [aged 32] a year before. An example of Marriage of Two Sets of Siblings. She the illegitmate daughter of Peter "Cruel" I King Castile and Maria Padilla. He the son of King Edward III of England [aged 59] and Philippa of Hainaut Queen Consort England. They were half third cousin twice removed.

Around 1410 John Grey [aged 23] and Constance Holland Countess Norfolk and Nottingham [aged 23] were married. She by marriage Baroness Grey of Ruthyn. She the daughter of John Holland 1st Duke Exeter and Elizabeth Lancaster Duchess Exeter [aged 46]. They were half third cousin twice removed. He a great x 4 grandson of King Edward I of England. She a great granddaughter of King Edward III of England.

Before 23rd February 1416 Adolph de la Marck I Duke Cleves [aged 42] and Marie Valois Duchess Cleves [aged 23] were married. She the daughter of John "Fearless" Valois Duke Burgundy [aged 44] and Margaret Wittelsbach Duchess Burgundy [aged 53]. He the son of Adolph de la Marck and Margaret Jülich Countess Cleves and Mark [aged 66]. They were half third cousin twice removed. She a great x 4 granddaughter of King Edward I of England.

In 1485 Piers "Red" Butler 8th Earl Ormonde 1st Earl Ossory [aged 18] and Margaret Fitzgerald Countess Ormonde and Ossory were married. She the daughter of Gerald Fitzgerald 8th Earl of Kildare [aged 28] and Alice Fitzeustace Countess Kildare. They were half third cousin twice removed.

Before 18th June 1531 William Howard 1st Baron Howard [aged 21] and Katherine Broughton were married. She the daughter of John Broughton of Toddington, Bedfordshire and Anne Sapcote Countess Bedford [aged 52]. He the son of Thomas Howard 2nd Duke of Norfolk and Agnes Tilney Duchess Norfolk [aged 54]. They were half third cousin twice removed.

Around 27th August 1559 William St Lo [aged 41] and Bess of Hardwick [aged 32] were married. They were half third cousin twice removed.

On 18th October 1627 James Stewart 4th Earl of Moray [aged 16] and Margaret Home Countess Moray were married. She by marriage Countess Moray. She the daughter of Alexander Home 1st Earl of Home and Mary Dudley Countess Home [aged 41]. He the son of James Stewart 3rd Earl of Moray [aged 36] and Anne Gordon Countess Moray. They were half third cousin twice removed. He a great x 4 grandson of King Henry VII of England and Ireland.

In 1630 Philip Herbert 4th Earl Pembroke 1st Earl Montgomery [aged 45] and Anne Clifford Countess Dorset and Pembroke [aged 39] were married. She the daughter of George Clifford 3rd Earl of Cumberland and Margaret Russell Countess Cumberland. He the son of Henry Herbert 2nd Earl Pembroke and Mary Sidney Countess Pembroke. They were half third cousin twice removed.

In July 1692 Thomas Wharton 1st Marquess Wharton [aged 43] and Lucy Loftus Marchioness Wharton [aged 22] were married. The difference in their ages was 21 years. They were half third cousin twice removed.

In 1770 John Wrottesley 8th Baronet [aged 25] and Frances Courtenay Lady Wrottesley were married. She by marriage Lady Wrottesley of Wrottesley in Staffordshire. She the daughter of William Courtenay 7th Earl Devon and Frances Finch Countess Devon. They were half third cousin twice removed.

On 26th September 1865 Granville Leveson-Gower 2nd Earl Granville [aged 50] and Sophia Castila Rosamund Campbell Countess Granville [aged 18] were married. The difference in their ages was 32 years. He the son of Granville Leveson-Gower 1st Earl Granville and Harriet Cavendish Countess Granville. They were half third cousin twice removed.

In 1930 Reginald Manningham-Buller 1st Viscount Dilhorne [aged 24] and Mary Lillian Lindsay [aged 20] were married. She the daughter of David Lindsay 27th Earl of Crawford 10th Earl Balcarres [aged 58] and Constance Lilian Pelly Countess Crawford and Balcarres. They were half third cousin twice removed.

Baldwin Flanders IV Count Hainaut and Alice Namur Countess Hainaut were married. She by marriage Countess Hainaut. She the daughter of Godfrey Namur I Count Namur and Ermesinde Luxemburg Countess Namur. He the son of Baldwin Flanders III Count Hainaut and Yolande Guelders Countess Hainaut. They were half third cousin twice removed.

Simon Montfort and Amicia Beaumont were married. She by marriage Seigneur Montfort. She the daughter of Robert Beaumont 3rd Earl of Leicester and Petronilla Grandesmil Countess Leicester. He the son of Simon "Chauve" Montfort 4th Count Évreux and Mathilde Unknown Countess Évreux. They were half third cousin twice removed.

Amaury V Montfort 5th Count Évreux and Mabel Fitzrobert Countess Évreux were married. She by marriage Countess Évreux. She the daughter of William Fitzrobert 2nd Earl Gloucester and Hawise Beaumont Countess Gloucester. He the son of Simon "Chauve" Montfort 4th Count Évreux and Mathilde Unknown Countess Évreux. They were half third cousin twice removed. She a great granddaughter of King Henry I "Beauclerc" England.

Aimery Thouars VII Viscount Thouars and Cecile or Sybil Laval Viscountess Thouars were married. They were half third cousin twice removed. She a granddaughter of King Henry I "Beauclerc" England.