Married Half First Cousin is in First Cousin Heading.
Around 645 King Oswiu of Northumbria [aged 33] and Eanflæd Queen Consort Bernicia [aged 18] were married. She by marriage Queen Consort Bernicia. She the daughter of King Edwin of Northumbria and Æthelburh Oiscingas Queen Consort Northumbria [aged 40]. He the son of Æthelfrith King Northumbrians and Acha Queen Consort Northumbria. They were half first cousins.
On 2nd December 1022 Alfonso "Noble" V King Leon [aged 28] and Urraca Jiménez Queen Consort Leon were married. She by marriage Queen Consort Leon. She the daughter of García Sánchez "Tremulous" II King Pamplona and Jimena Fernández Bermúdez Queen Consort Pamplona. He the son of Bermudo "Gouty" II King Galicia II King Leon and Elviro Garcia Queen Galicia. They were half first cousins.
In 1088 William "Troubadour" Poitiers IX Duke Aquitaine [aged 16] and Ermengarde Anjou Duchess Brittany and Aquitaine [aged 20] were married. She by marriage Duchess Aquitaine. She the daughter of Fulk "Réchin" Anjou 4th Count Anjou [aged 45] and Hildegarde Beaugency Countess Anjou [aged 44]. He the son of Guy William Poitiers VIII Duke Aquitaine and Hildegarde Burgundy Duchess Aquitaine [aged 32]. They were half first cousins.
On 5th July 1324 Charles IV King France I King Navarre [aged 30] and Joan Évreux Queen Consort France [aged 14] were married. She by marriage Queen Consort of France. She the daughter of Louis I Count Évreux and Margaret Artois Countess Évreux. He the son of King Philip IV of France and Joan Blois I Queen Navarre. They were half first cousins. He a great x 4 grandson of King Henry "Curtmantle" II of England. She a great x 2 granddaughter of King Henry III of England.
On 22nd August 1347 Louis I of Naples [aged 27] and Joanna I Queen of Naples [aged 21] were married. They were half first cousins. He a great x 4 grandson of King Henry "Curtmantle" II of England. She a great x 3 granddaughter of King Henry III of England.
After 20th January 1465 Thomas Boyd 1st Earl Arran and Elizabeth Montgomerie [aged 26] were married. They were half first cousins.
On 29th July 1565 Henry "Lord Darnley" Stewart [aged 19] and Mary Queen of Scots [aged 22] were married at Holyrood Palace, Holyrood. She the daughter of King James V of Scotland and Mary of Guise Queen Consort Scotland. He the son of Matthew Stewart 4th Earl Lennox [aged 48] and Margaret Douglas Countess Lennox [aged 49]. They were half first cousins. He a great grandson of King Henry VII of England and Ireland. She a great granddaughter of King Henry VII of England and Ireland.
In 1650 Compton Reade 1st Baronet [aged 24] and Mary Cornwall Lady Reade [aged 20] were married at the Church of St Mary Magdalene, Duns Tew. They were half first cousins.
On 2nd May 1655 William Ker 2nd Earl Roxburghe [aged 32] and Jane Ker Countess Roxburgh were married. She by marriage Countess Roxburghe. She the daughter of Henry Ker and Margaret Hay Countess Cassilis. He the son of John Drummond 2nd Earl Perth [aged 67] and Jean Ker Countess Perth. They were half first cousins.
In or before 1682 Robert Luttrell and Alison or Anne Preston [aged 41] were married. They were half first cousins.
Before 9th March 1686 Henry Seymour [aged 74] and Elizabeth Killigrew [aged 73] were married. They were half first cousins.
In or before 1696 Richard Courtenay and Catherine Waller were married. He the son of William Courtenay 5th Earl Devon [aged 67] and Margaret Waller Countess Devon. They were half first cousins.
In 1696 William Gore [aged 26] and Catherine Newcomen were married. They were half first cousins.
Chronicle of Geoffrey le Baker of Swinbroke
Baker was a secular clerk from Swinbroke, now Swinbrook, an Oxfordshire village two miles east of Burford. His Chronicle describes the events of the period 1303-1356: Gaveston, Bannockburn, Boroughbridge, the murder of King Edward II, the Scottish Wars, Sluys, Crécy, the Black Death, Winchelsea and Poitiers. To quote Herbert Bruce 'it possesses a vigorous and characteristic style, and its value for particular events between 1303 and 1356 has been recognised by its editor and by subsequent writers'. The book provides remarkable detail about the events it describes. Baker's text has been augmented with hundreds of notes, including extracts from other contemporary chronicles, such as the Annales Londonienses, Annales Paulini, Murimuth, Lanercost, Avesbury, Guisborough and Froissart to enrich the reader's understanding. The translation takes as its source the 'Chronicon Galfridi le Baker de Swynebroke' published in 1889, edited by Edward Maunde Thompson.
Available at Amazon in eBook and Paperback format.
On 6th July 1710 Charles Bourbon Duke Berry, Alençon and Angoulême [aged 23] and Marie Louise Élisabeth Bourbon Duchess Berry [aged 14] were married. She by marriage Duchess Berry. She the daughter of Philippe Bourbon II Duke Orléans [aged 35] and Françoise Marie Bourbon Duchess Orléans [aged 33]. He the son of Louis "Le Grand Dauphin" Bourbon Duke Burgundy [aged 48] and Maria Anna Victoria Wittelsbach Duchess Burgundy. They were half first cousins. She a great x 3 granddaughter of King James I of England and Ireland and VI of Scotland.
On 4th August 1713 James Brydges 1st Duke Chandos [aged 40] and Cassandra Willoughby Duchess Chandos [aged 43] were married. They were half first cousins.
In or before 1720 William Noel [aged 24] and Elizabeth Trollope [aged 27] were married. They were half first cousins.
On 5th March 1737 Charles Emmanuel III King Sardinia [aged 35] and Elisabeth Therese Lorraine Queen Consort Sardinia [aged 25] were married. She by marriage Queen Consort Sardinia. She the daughter of Leopold Duke of Lorraine and Élisabeth Charlotte Bourbon Duchess Lorraine [aged 60]. He the son of Victor Amadeus King Sardinia and Anne Marie Bourbon Queen Consort Sardinia. They were half first cousins. He a great grandson of King Charles I of England, Scotland and Ireland. She a great x 3 granddaughter of King James I of England and Ireland and VI of Scotland.
Before 2nd May 1737 John Petty-Fitzmaurice 1st Earl Shelburne [aged 31] and Mary Fitzmaurice Countess Shelburne were married. He the son of Thomas Fitzmurice 1st Earl Kerry [aged 69] and Anne Petty Countess Kerry. They were half first cousins.
On 16th June 1739 Robert Ker 2nd Duke Roxburghe [aged 30] and Essex Mostyn Duchess Roxburghe were married. He the son of John Ker 1st Duke Roxburghe [aged 59] and Mary Finch Duchess Roxburghe [aged 62]. They were half first cousins.
On 29th August 1757 James Wemyss [aged 31] and Elizabeth Sutherland were married. She the daughter of William Sutherland 17th Earl Sutherland and Elizabeth Wemyss Countess Sutherland. He the son of James Wemyss 5th Earl of Wemyss and Janet Charteris. They were half first cousins.
On 3rd November 1763 Francis William Drake [aged 39] and Elizabeth Heathcote [aged 33] were married. They had two daughters. They were half first cousins.
On 7th May 1773 Andrew Foley [aged 26] and Elizabeth Tomlinson [aged 30] were married. They had two sons and four daughters. They were half first cousins.
On 15th July 1774 Prince Charles Louis of Baden [aged 19] and Princess Amalie of Hesse-Darmstadt [aged 20] were married. They were half first cousins.
On 19th February 1777 Louis I Grand Duke of Hesse [aged 23] and Princess Louise of Hesse-Darmstadt [aged 16] were married. They were half first cousins.
Annals of the six Kings of England by Nicholas Trivet
Translation of the Annals of the Six Kings of England by that traces the rise and rule of the Angevin aka Plantagenet dynasty from the mid-12th to early 14th century. Written by the Dominican scholar Nicholas Trivet, the work offers a vivid account of English history from the reign of King Stephen through to the death of King Edward I, blending political narrative with moral reflection. Covering the reigns of six monarchs—from Stephen to Edward I—the chronicle explores royal authority, rebellion, war, and the shifting balance between crown, church, and nobility. Trivet provides detailed insight into defining moments such as baronial conflicts, Anglo-French rivalry, and the consolidation of royal power under Edward I, whose reign he describes with particular immediacy. The Annals combines careful year-by-year reporting with thoughtful interpretation, presenting history not merely as a sequence of events but as a moral and political lesson. Ideal for readers interested in medieval history, kingship, and the origins of the English state, this chronicle remains a valuable and accessible window into the turbulent world of the Plantagenet kings.
Available at Amazon in eBook and Paperback format.
On 19th October 1777 Robert Fulke Greville [aged 26] and Louisa Cathcart 2nd Countess Mansfield [aged 19] were married. He the son of Francis Greville 1st Earl Brooke Warwick Castle 1st Earl Warwick and Elizabeth Hamilton Countess Brooke Warwick Castle and Warwick [aged 57]. They were half first cousins.
In 1788 Archbishop Charles Manners-Sutton [aged 32] and Mary Thoroton were married. They had, probably, eloped. They were half first cousins.
On 9th December 1799 Robert King 1st Viscount Lorton [aged 26] and Frances Parsons [aged 24] were married. He the son of Robert King 2nd Earl Kingston and Caroline Fitzgerald. They were half first cousins.
On 7th January 1801 Francis Stuart 10th Earl of Moray [aged 29] and Margaret Jane Ainslie Countess Moray were married. He the son of Francis Stuart 9th Earl of Moray [aged 64] and Jean Gray Countess Moray. They were half first cousins.
Before 1805 Jonathan Wathen Phipps aka Waller 1st Baronet [aged 35] and Elizabeth Slack [aged 30] were married. They had four children. They were half first cousins.
On 9th December 1805 Charles Ethelston Nightingale 11th Baronet [aged 21] and Maria Dickonson Lady Nightingale [aged 16] were married. She by marriage Lady Nightingale of Newport Pond in Essex. They were half first cousins.
Before 30th December 1806 Wilbraham Egerton [aged 25] and Elizabeth Sykes [aged 29] were married. They were half first cousins.
In or before 1807 Richard Ponsonby [aged 34] and Frances Staples were married. He the son of William Ponsonby 1st Baron Ponsonby of Imokilly in County Cork and Louisa Molesworth Countess Fitzwilliam [aged 57]. They were half first cousins.
On 19th December 1813 Cornelius "Commodore" Vanderbilt [aged 19] and Sophia Johnson were married after which they lived at a boarding house on Broad Street Manhattan. They were half first cousins.
On 2nd August 1814 Mark Masterman-Sykes 3rd Baronet [aged 42] and Mary Elizabeth Egerton Lady Sledmere were married. They were half first cousins.
In 1823 Robert Smith aka Vernon 1st Baron Lyveden [aged 22] and Emma Mary Fitzpatrick Baroness Lyveden [aged 15] were married. She the illegitmate daughter of John Fitzpatrick 2nd Earl Upper Ossory and Elizabeth Mary Wilson. They were half first cousins.
Chronicle of Abbot Ralph of Coggeshall
The Chronicle of Abbot Ralph of Coggeshall (Chronicon Anglicanum) is an indispensable medieval history that brings to life centuries of English and European affairs through the eyes of a learned Cistercian monk. Ralph of Coggeshall, abbot of the Abbey of Coggeshall in Essex in the early 13th century, continued and expanded his community’s chronicle, documenting events from the Norman Conquest of 1066 into the tumultuous reign of King Henry III. Blending eyewitness testimony, careful compilation, and the monastic commitment to record-keeping, this chronicle offers a rare narrative of political intrigue, royal power struggles, and social upheaval in England and beyond. Ralph’s work captures the reigns of pivotal figures such as Richard I and King John, providing invaluable insights into their characters, decisions, and the forces that shaped medieval rule. More than a simple annal, Chronicon Anglicanum conveys the texture of medieval life and governance, making it a rich source for scholars and readers fascinated by English history, monastic authorship, and the shaping of the medieval world.
Available at Amazon in eBook and Paperback format.
On 8th April 1823 William Bryan Cooke 8th Baronet [aged 41] and Isabella Cecilia Middleton Lady Cooke were married. They were half first cousins.
Before 9th August 1828 Henry Halford 2nd Baronet [aged 31] and Barbara Vaughan were married. They were half first cousins.
On 30th April 1830 Henry William Petre [aged 39] and Adeliza Maria Howard were married. They were half first cousins. He a great x 4 grandson of King Charles II of England Scotland and Ireland.
On 13th May 1830 Ernest Augustus Perceval [aged 22] and Beatrice Trevelyan [aged 21] were married. They were half first cousins.
On 3rd May 1834 Spencer Bulkeley Wynn 3rd Baron Newborough [aged 30] and Frances Maria De Winton Baroness Newborough were married at Great Malvern Priory [Map]. She by marriage Baroness Newborough of Newborough in County Wexford. They were half first cousins.
On 6th October 1835 Spencer Horatio Walpole [aged 29] and Isabella Perceval [aged 33] were married. They were half first cousins.
On 25th January 1836 Richard Wingfield 6th Viscount Powerscourt [aged 21] and Elizabeth Frances Jocelyn Viscountess Powerscout [aged 22] were married. She by marriage Viscountess Powerscourt. She the daughter of Robert Jocelyn 3rd Earl Roden [aged 47] and Maria Frances Catherine Stapleton Countess Roden. They were half first cousins.
In April 1841 Ford Madox Brown [aged 19] and Elizabeth Bromley [aged 22] were married. They were half first cousins.
On 16th January 1861 George Godolphin Osborne 9th Duke Leeds [aged 32] and Fanny Georgiana Pitt-Rivers Duchess Leeds [aged 24] were married. He the son of George Godolphin Osborne 8th Duke Leeds [aged 58] and Harriet Emma Arundel Stewart. They were half first cousins.
In 1866 John Walbanke-Childers [aged 67] and Selena Radford were married. They were half first cousins.
Adam Murimuth's Continuation and Robert of Avesbury’s 'The Wonderful Deeds of King Edward III'
This volume brings together two of the most important contemporary chronicles for the reign of Edward III and the opening phases of the Hundred Years’ War. Written in Latin by English clerical observers, these texts provide a vivid and authoritative window into the political, diplomatic, and military history of fourteenth-century England and its continental ambitions. Adam Murimuth Continuatio's Chronicarum continues an earlier chronicle into the mid-fourteenth century, offering concise but valuable notices on royal policy, foreign relations, and ecclesiastical affairs. Its annalistic structure makes it especially useful for establishing chronology and tracing the development of events year by year. Complementing it, Robert of Avesbury’s De gestis mirabilibus regis Edwardi tertii is a rich documentary chronicle preserving letters, treaties, and official records alongside narrative passages. It is an indispensable source for understanding Edward III’s claim to the French crown, the conduct of war, and the mechanisms of medieval diplomacy. Together, these works offer scholars, students, and enthusiasts a reliable and unembellished account of a transformative period in English and European history. Essential for anyone interested in medieval chronicles, the Hundred Years’ War, or the reign of Edward III.
Available at Amazon in eBook and Paperback format.
On 18th April 1867 Nathan Meyer 1st Baron Rothschild [aged 26] and Emma Louise von Rothschild Baroness Rothschild [aged 23] were married. They were half first cousins.
On 5th August 1874 William Frederick Waldegrave 9th Earl Waldegrave [aged 23] and Mary Dorothea Palmer Countess Waldegrave [aged 24] were married. She by marriage Countess Waldegrave. She the daughter of Roundell Palmer 1st Earl Selborne [aged 61] and Laura Waldegrave Countess Selborne [aged 53]. They were half first cousins. He a great x 5 grandson of King James II of England Scotland and Ireland. She a great x 5 granddaughter of King James II of England Scotland and Ireland.
On 23rd January 1878 Alfonso XII King Spain [aged 20] and Maria de las Mercedes Queen Consort Spain [aged 17] were married. She by marriage Queen Consort Spain. She the daughter of Antoine Orléans Duke Montpensier [aged 53] and Infanta Luisa Fernanda Duchess of Montpensier [aged 45]. He the son of Francisco de Asís King Consort Spain [aged 55] and Isabella II Queen Spain [aged 47]. They were half first cousins.
On 3rd February 1887 Gerald William Henry Codrington 1st Baronet [aged 37] and Edith Henrietta Sybil Denison Lady Codrington [aged 22] were married. She by marriage Lady Codrington of Dodington. She the daughter of William Henry Forester Denison 1st Earl Londesborough [aged 52] and Edith Somerset Countess Londesborough [aged 48]. They were half first cousins. He a great x 5 grandson of King Charles II of England Scotland and Ireland.
In 1919 Alexander Bannerman Carnegie [aged 25] and Susan Ottilia de Rodakowski-Rivers were married. He the son of Charles Noel Carnegie 10th Earl of Southesk [aged 64] and Ethel Mary Elizabeth Bannerman Countess Southesk [aged 51]. They were half first cousins.
On 1st October 1930 John Charles Langham 14th Baronet [aged 36] and Rosamond Christabel Rashleigh [aged 27] were married. They were half first cousins.
Dietrich Cleves VII Count Cleves and Margaret Guelders Countess Cleves were married. She by marriage Countess Cleves. She the daughter of Otto II Count Guelders and Margaretha Cleves Countess of Gulders. He the son of Dietrich Cleves VI Count Cleves and Alida d Henry I Sponheim Countess Cleves. They were half first cousins. She a great x 3 granddaughter of King Stephen I England.
William Stafford and Isabel Stafford were married. They were half first cousins.
Major William Knollys and Mary Katherine Law were married. He the son of Charles Knollys 4th Earl Banbury and Elizabeth Lister Countess of Banbury. They were half first cousins.