The Deeds of the Dukes of Normandy
The Gesta Normannorum Ducum [The Deeds of the Dukes of Normandy] is a landmark medieval chronicle tracing the rise and fall of the Norman dynasty from its early roots through the pivotal events surrounding the Norman Conquest of England. Originally penned in Latin by the monk William of Jumièges shortly before 1060 and later expanded at the behest of William the Conqueror, the work chronicles the deeds, politics, battles, and leadership of the Norman dukes, especially William’s own claim to the English throne. The narrative combines earlier historical sources with firsthand information and oral testimony to present an authoritative account of Normandy’s transformation from a Viking settlement into one of medieval Europe’s most powerful realms. William’s history emphasizes the legitimacy, military prowess, and governance of the Norman line, framing their expansion, including the conquest of England, as both divinely sanctioned and noble in purpose. Later chroniclers such as Orderic Vitalis and Robert of Torigni continued the history, extending the coverage into the 12th century, providing broader context on ducal rule and its impact. Today this classic work remains a foundational source for understanding Norman identity, medieval statesmanship, and the historical forces that reshaped England and Western Europe between 800AD and 1100AD.
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Paternal Family Tree: Thynne
Maternal Family Tree: Ursula St Barbe 1532-1602
On 6th December 1726 [his father] Thomas Thynne 2nd Viscount Weymouth (age 16) and Elizabeth Sackville Viscountess Weymouth (age 15) were married at Whitehall Palace [Map]. She by marriage Viscountess Weymouth. She the daughter of Lionel Cranfield Sackville 1st Duke Dorset (age 38) and Elizabeth Colyear Duchess Dorset (age 37). They were fifth cousins.
On 3rd July 1733 [his father] Thomas Thynne 2nd Viscount Weymouth (age 23) and [his mother] Louisa Carteret Viscountess Weymouth (age 21) were married. She by marriage Viscountess Weymouth. She the daughter of [his grandfather] John Carteret 2nd Earl Granville (age 43) and [his grandmother] Frances Worsley Countess Granville (age 40). They were second cousin once removed.
On 13th September 1734 Thomas Thynne 1st Marquess of Bath was born to [his father] Thomas Thynne 2nd Viscount Weymouth (age 24) and [his mother] Louisa Carteret Viscountess Weymouth (age 22).
On 25th December 1736 [his mother] Louisa Carteret Viscountess Weymouth (age 24) died.
In January 1751 [his father] Thomas Thynne 2nd Viscount Weymouth (age 40) died. His son Thomas (age 16) succeeded 3rd Viscount Weymouth, 3rd Baron Thynne of Warminster in Wiltshire, 4th Baronet Thynne of Kempsford in Gloucestershire.
In 1759 Thomas Thynne 1st Marquess of Bath (age 24) and Elizabeth Bentinck Marchioness Bath (age 23) were married. She by marriage Viscountess Weymouth. She the daughter of William Bentinck 2nd Duke Portland (age 49) and Margaret Cavendish Harley 2nd Duchess Portland (age 43). They were third cousins.
On 25th March 1760 [his daughter] Louisa Thynne Countess Aylesford was born to Thomas Thynne 1st Marquess of Bath (age 25) and [his wife] Elizabeth Bentinck Marchioness Bath (age 24). She married 18th November 1781 Heneage Finch 4th Earl Aylesford, son of Heneage Finch 3rd Earl Aylesford and Charlotte Seymour Countess Aylesford, and had issue.
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.
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On 1st May 1762 [his father-in-law] William Bentinck 2nd Duke Portland (age 53) died. His son [his brother-in-law] William (age 24) succeeded 3rd Duke Portland, 4th Earl of Portland.
On 17th November 1762 [his daughter] Henrietta Thynne was born to Thomas Thynne 1st Marquess of Bath (age 28) and [his wife] Elizabeth Bentinck Marchioness Bath (age 27). She married 2nd May 1799 Philip Stanhope 5th Earl Chesterfield and had issue.
On 28th May 1763 George Grey 5th Earl Stamford 1st Earl Warrington (age 25) and [his sister-in-law] Henrietta Bentinck Countess Stamford and Warrington (age 26) were married. She by marriage Countess Stamford. She the daughter of [his father-in-law] William Bentinck 2nd Duke Portland and [his mother-in-law] Margaret Cavendish Harley 2nd Duchess Portland (age 48). He the son of Henry Grey 4th Earl Stamford (age 47) and Mary Booth Countess Stamford (age 59).
On 19th December 1763 [his daughter] Sophia Thynne was born to Thomas Thynne 1st Marquess of Bath (age 29) and [his wife] Elizabeth Bentinck Marchioness Bath (age 28). She married 28th August 1784 her fourth cousin twice removed George Ashburnham 3rd Earl Ashburnham, son of John Ashburnham 2nd Earl Ashburnham and Elizabeth Crowley Countess Ashburham, and had issue.
In 1765 Thomas Thynne 1st Marquess of Bath (age 30) was appointed Lord Lieutenant of Ireland.
On 23rd January 1765 [his son] Thomas Thynne 2nd Marquess of Bath was born to Thomas Thynne 1st Marquess of Bath (age 30) and [his wife] Elizabeth Bentinck Marchioness Bath (age 29). He married 14th April 1794 his fifth cousin Isabella Elizabeth Byng Marchioness Bath, daughter of George Byng 4th Viscount Torrington and Lucy Boyle Viscountess Torrington, and had issue.
On 8th November 1766 [his brother-in-law] William Cavendish-Bentinck 3rd Duke Portland (age 28) and Dorothy Cavendish 3rd Duchess Portland (age 16) were married. She by marriage Duchess Portland. She the daughter of William Cavendish 4th Duke Devonshire and Charlotte Elizabeth Boyle Marchioness Hartington. He the son of [his father-in-law] William Bentinck 2nd Duke Portland and [his mother-in-law] Margaret Cavendish Harley 2nd Duchess Portland (age 51). They were half fourth cousins.
In January 1768 Thomas Thynne 1st Marquess of Bath (age 33) was appointed Secretary of State for the Northern Department.
In 1770 [his brother] Henry Carteret 1st Baron Carteret (age 35) was appointed Privy Council.
Abbot John Whethamstede’s Chronicle of the Abbey of St Albans
Abbot John Whethamstede's Register aka Chronicle of his second term at the Abbey of St Albans, 1451-1461, is a remarkable text that describes his first-hand experience of the beginning of the Wars of the Roses including the First and Second Battles of St Albans, 1455 and 1461, respectively, their cause, and their consequences, not least on the Abbey itself. His text also includes Loveday, Blore Heath, Northampton, the Act of Accord, Wakefield, and Towton, and ends with the Coronation of King Edward IV. In addition to the events of the Wars of the Roses, Abbot John, or his scribes who wrote the Chronicle, include details in the life of the Abbey such as charters, letters, land exchanges, visits by legates, and disputes, which provide a rich insight into the day-to-day life of the Abbey, and the challenges faced by its Abbot.
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On 23rd January 1770 [his son] George Thynne 2nd Baron Carteret was born to Thomas Thynne 1st Marquess of Bath (age 35) and [his wife] Elizabeth Bentinck Marchioness Bath (age 34). He married 9th May 1797 Harriet Courtenay Baroness Carteret, daughter of William Courtenay 8th Earl Devon and Frances Clack Countess Devon.
On 28th December 1772 [his son] John Thynne 3rd Baron Carteret was born to Thomas Thynne 1st Marquess of Bath (age 38) and [his wife] Elizabeth Bentinck Marchioness Bath (age 37).
In 1778 Thomas Thynne 1st Marquess of Bath (age 43) was appointed 595th Knight of the Garter by King George III of Great Britain and Ireland (age 39).
In 1781 Thomas Thynne 1st Marquess of Bath (age 46) was appointed High Steward of Sutton Coldfield.
On 18th November 1781 [his son-in-law] Heneage Finch 4th Earl Aylesford (age 30) and Louisa Thynne Countess Aylesford (age 21) were married. She by marriage Countess Aylesford. She the daughter of Thomas Thynne 1st Marquess of Bath (age 47) and Elizabeth Bentinck Marchioness Bath (age 46). He the son of Heneage Finch 3rd Earl Aylesford and Charlotte Seymour Countess Aylesford (age 51).
In 1784 Henry Carteret 1st Baron Carteret (age 49) was created 1st Baron Carteret with a special remainder to the younger sons of his brother, the Marquess of Bath.
On 28th August 1784 [his son-in-law] George Ashburnham 3rd Earl Ashburnham (age 23) and Sophia Thynne (age 20) were married. She the daughter of Thomas Thynne 1st Marquess of Bath (age 49) and Elizabeth Bentinck Marchioness Bath (age 49). He the son of John Ashburnham 2nd Earl Ashburnham (age 59) and Elizabeth Crowley Countess Ashburham. They were fourth cousin twice removed.
The London Gazette 13123. Whitehall, August 18 [1789].
The King has been pleased to grant the Dignity of a Marquess of the Kingdom of Great Britain to the Right Honourable James Earl of Salisbury (age 40), and the Heirs Male of his Body lawfully begotten, by the Name, Stile and Title of Marquess of Salisbury, in the County of Wilts. [Mary Amelia Hill Marchioness Salisbury (age 39) by marriage Marchioness Salisbury in Wiltshire.]
The King has also been pleased to grant the Dignity of a Marquess of the Kingdom of Great Britain to the Right Honourable Thomas Viscount Weymouth (age 54), Knight of the Most Noble Order of the Garter, and the Heirs Male of his body lawfully begotten, by the Name, Stile and Title of Marquess of Bath, in the County of Somerset. [[his wife] Elizabeth Bentinck Marchioness Bath (age 54) by marriage Marchioness of Bath.]
The King has been pleased to grant the Dignity of an Earl of this Kingdom of Great Britain to the Right Honourable George Viscount Mount-Edgcumbe and Valletort (age 69), and the Heirs Male of liis Body lawfully begotten, by the Name, Stile and Title of Earl of Mount-Edgcumbe. [Emma Gilbert Countess Mount Edgcumbe by marriage Countess of Mount Edgcumbe.]
The King has been pleased to grant the Dignities of Viscount and Earl of the Kingdom of Great Britain to the Right Honourable Hugh Lord Fortescue (age 36), and the Heirs Male of his Body lawfully begotten, by the Name, Stile and Title of 1stViscount Ebrington, of Ebrington in the County of Gloucester, and Earl Fortescue. [Hester Granville Countess Fortescue (age 23) by marriage Countess Fortescue.]
The History of William Marshal was commissioned by his son shortly after William’s death in 1219 to celebrate the Marshal’s remarkable life; it is an authentic, contemporary voice. The manuscript was discovered in 1861 by French historian Paul Meyer. Meyer published the manuscript in its original Anglo-French in 1891 in two books. This book is a line by line translation of the first of Meyer’s books; lines 1-10152. Book 1 of the History begins in 1139 and ends in 1194. It describes the events of the Anarchy, the role of William’s father John, John’s marriages, William’s childhood, his role as a hostage at the siege of Newbury, his injury and imprisonment in Poitou where he met Eleanor of Aquitaine and his life as a knight errant. It continues with the accusation against him of an improper relationship with Margaret, wife of Henry the Young King, his exile, and return, the death of Henry the Young King, the rebellion of Richard, the future King Richard I, war with France, the death of King Henry II, and the capture of King Richard, and the rebellion of John, the future King John. It ends with the release of King Richard and the death of John Marshal.
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On 9th April 1791 [his daughter] Sophia Thynne (age 27) died.
On 14th April 1794 Thomas Thynne 2nd Marquess of Bath (age 29) and Isabella Elizabeth Byng Marchioness Bath (age 20) were married. He the son of Thomas Thynne 1st Marquess of Bath (age 59) and Elizabeth Bentinck Marchioness Bath (age 58). They were fifth cousins.
In 1796 George Grey 5th Earl Stamford 1st Earl Warrington (age 58) was created 1st Earl Warrington, 1st Baron Delamer. [his sister-in-law] Henrietta Bentinck Countess Stamford and Warrington (age 58) by marriage Countess Warrington.
On 19th November 1796 Thomas Thynne 1st Marquess of Bath (age 62) died. His son Thomas (age 31) succeeded 2nd Marquess of Bath, 4th Viscount Weymouth, 4th Baron Thynne of Warminster in Wiltshire, 5th Baronet Thynne of Kempsford in Gloucestershire. Isabella Elizabeth Byng Marchioness Bath (age 23) by marriage Marchioness of Bath.
After 19th November 1796. Saints Peter and Paul Church, Longbridge Deverill [Map]. Memorial to Thomas Thynne 1st Marquess of Bath (deceased).
On 12th December 1825 [his former wife] Elizabeth Bentinck Marchioness Bath (age 90) died. Memorial in Saints Peter and Paul Church, Longbridge Deverill [Map].
Elizabeth Bentinck Marchioness Bath: On 27th June 1735 she was born to William Bentinck 2nd Duke Portland and Margaret Cavendish Harley 2nd Duchess Portland at Welbeck Abbey, Nottinghamshire [Map]. In 1759 Thomas Thynne 1st Marquess of Bath and she were married. She by marriage Viscountess Weymouth. She the daughter of William Bentinck 2nd Duke Portland and Margaret Cavendish Harley 2nd Duchess Portland. They were third cousins.
Kings Wessex: Great x 21 Grand Son of King Edmund "Ironside" I of England
Kings Gwynedd: Great x 18 Grand Son of Owain "Great" King Gwynedd
Kings Seisyllwg: Great x 24 Grand Son of Hywel "Dda aka Good" King Seisyllwg King Deheubarth
Kings Powys: Great x 19 Grand Son of Maredudd ap Bleddyn King Powys
Kings Godwinson: Great x 22 Grand Son of King Harold II of England
Kings England: Great x 9 Grand Son of King Henry VII of England and Ireland
Kings Scotland: Great x 20 Grand Son of King Duncan I of Scotland
Kings Franks: Great x 28 Grand Son of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Kings France: Great x 12 Grand Son of Charles "Beloved Mad" VI King France
Kings Duke Aquitaine: Great x 25 Grand Son of Ranulf I Duke Aquitaine
Great x 4 Grandfather: John Thynne 
Great x 3 Grandfather: Thomas Thynne
Great x 4 Grandmother: Joan Hayward 
Great x 2 Grandfather: Henry Thynne 1st Baronet 9 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: Charles Lyte aka Howard 
7 x Great Grand Son of King Edward III of England
Great x 3 Grandmother: Catherine Howard 8 x Great Grand Daughter of King Edward III of England
Great x 1 Grandfather: Henry Frederick Thynne 10 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: Thomas Coventry 
Great x 3 Grandfather: Thomas Coventry 1st Baron Coventry
Great x 2 Grandmother: Mary Coventry Lady Thynne Kempsford
Great x 4 Grandfather: John Aldersley of Spurstow in Cheshire
Great x 3 Grandmother: Elizabeth Aldersley Baroness Coventry
GrandFather: Thomas Thynne 11 x Great Grand Son of King Edward III of England
Father: Thomas Thynne 2nd Viscount Weymouth 12 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: George Villiers of Brokesby 
Great x 3 Grandfather: Edward Villiers
Great x 4 Grandmother: Audrey Saunders
Great x 2 Grandfather: Edward Villiers 9 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: John St John 
7 x Great Grand Son of King Edward III of England
Great x 3 Grandmother: Barbara St John 8 x Great Grand Daughter of King Edward III of England
Great x 4 Grandmother: Lucy Hungerford 
11 x Great Grand Daughter of King Henry III of England
Great x 1 Grandfather: Edward Villiers 1st Earl Jersey 10 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: Thomas Howard 1st Earl Suffolk 7 x Great Grand Son of King Edward III of England
Great x 3 Grandfather: Theophilus Howard 2nd Earl Suffolk 8 x Great Grand Son of King Edward III of England
Great x 4 Grandmother: Catherine Knyvet Countess Suffolk 
9 x Great Grand Daughter of King Edward I of England
Great x 2 Grandmother: Frances Howard 9 x Great Grand Daughter of King Edward III of England
Great x 4 Grandfather: George Home 1st Earl Dunbar
Great x 3 Grandmother: Elizabeth Home Countess Suffolk 15 x Great Grand Daughter of King John of England
Great x 4 Grandmother: Elizabeth Gordon Countess Dunbar 14 x Great Grand Daughter of King John of England
GrandMother: Mary Villiers Baroness Lansdowne 11 x Great Grand Daughter of King Edward III of England
Great x 3 Grandfather: Unknown Chiffinch
Great x 2 Grandfather: William Chiffinch
Great x 1 Grandmother: Barbara Chiffinch Countess Jersey
Thomas Thynne 1st Marquess of Bath 9 x Great Grand Son of King Henry VII of England and Ireland
Great x 4 Grandfather: Elias Carteret 
11 x Great Grand Son of King Henry III of England
Great x 3 Grandfather: George Carteret 1st Baronet 12 x Great Grand Son of King Henry III of England
Great x 2 Grandfather: Philip Carteret 13 x Great Grand Son of King Henry III of England
Great x 1 Grandfather: George Carteret 1st Baron Carteret 12 x Great Grand Son of King Edward I of England
Great x 4 Grandfather: Sidney Montagu 
9 x Great Grand Son of King Edward I of England
Great x 3 Grandfather: Edward Montagu 1st Earl Sandwich 10 x Great Grand Son of King Edward I of England
Great x 4 Grandmother: Paulina Pepys
Great x 2 Grandmother: Jemima Montagu 11 x Great Grand Daughter of King Edward I of England
Great x 4 Grandfather: John Crew 1st Baron Crew 
Great x 3 Grandmother: Jemima Crew Countess Sandwich 12 x Great Grand Daughter of King Edward I of England
Great x 4 Grandmother: Jemima Waldegrave Baroness Crew 
11 x Great Grand Daughter of King Edward I of England
GrandFather: John Carteret 2nd Earl Granville 13 x Great Grand Son of King Edward I of England
Great x 4 Grandfather: Bernard Grenvlle
Great x 3 Grandfather: Bevil Grenville
Great x 2 Grandfather: John Granville 1st Earl Bath
Great x 4 Grandfather: George Smith of Exeter
Great x 3 Grandmother: Grace Smith
Great x 4 Grandmother: Grave Viell
Great x 1 Grandmother: Jane Granville Baroness Gower
Great x 3 Grandfather: Peter Wyche
Great x 2 Grandmother: Jane Wyche
Mother: Louisa Carteret Viscountess Weymouth 8 x Great Grand Daughter of King Henry VII of England and Ireland
Great x 4 Grandfather: Richard Worsley 1st Baronet
Great x 3 Grandfather: Henry Worsley 2nd Baronet 7 x Great Grand Son of King Edward III of England
Great x 4 Grandmother: Frances Neville 
6 x Great Grand Daughter of King Edward III of England
Great x 2 Grandfather: Robert Worsley 3rd Baronet 8 x Great Grand Son of King Edward III of England
Great x 1 Grandfather: Robert Worsley 4th Baronet 9 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: Philip Herbert 4th Earl Pembroke 1st Earl Montgomery 
7 x Great Grand Son of King Edward III of England
Great x 3 Grandfather: James Herbert 8 x Great Grand Son of King Edward III of England
Great x 4 Grandmother: Susan Vere Countess Montgomery 
8 x Great Grand Daughter of King Edward I of England
Great x 2 Grandmother: Mary Herbert Countess Gainsborough 9 x Great Grand Daughter of King Edward III of England
GrandMother: Frances Worsley Countess Granville 7 x Great Grand Daughter of King Henry VII of England and Ireland
Great x 4 Grandfather: Thomas Thynne
Great x 3 Grandfather: Henry Thynne 1st Baronet 9 x Great Grand Son of King Edward III of England
Great x 4 Grandmother: Catherine Howard 8 x Great Grand Daughter of King Edward III of England
Great x 2 Grandfather: Thomas Thynne 1st Viscount Weymouth 10 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: Thomas Coventry 1st Baron Coventry
Great x 3 Grandmother: Mary Coventry Lady Thynne Kempsford
Great x 4 Grandmother: Elizabeth Aldersley Baroness Coventry
Great x 1 Grandmother: Frances Thynne 6 x Great Grand Daughter of King Henry VII of England and Ireland
Great x 4 Grandfather: Thomas Finch 2nd Earl Winchilsea 
8 x Great Grand Son of King Edward III of England
Great x 3 Grandfather: Heneage Finch 3rd Earl Winchilsea 8 x Great Grand Son of King Edward III of England
Great x 4 Grandmother: Cecily Wentworth Countess Winchelsea 
7 x Great Grand Daughter of King Edward III of England
Great x 2 Grandmother: Frances Finch Viscountess Weymouth 5 x Great Grand Daughter of King Henry VII of England and Ireland
Great x 4 Grandfather: William Seymour 2nd Duke of Somerset 
3 x Great Grand Son of King Henry VII of England and Ireland
Great x 3 Grandmother: Mary Seymour Countess Winchelsea 4 x Great Grand Daughter of King Henry VII of England and Ireland
Great x 4 Grandmother: Frances Devereux Duchess of Somerset 
8 x Great Grand Daughter of King Edward III of England