Paternal Family Tree: Boyd
In 1749 [his father] James Hay 15th Earl Erroll [aged 22] and Rebecca Covington Countess Erroll were married. She by marriage Countess Erroll. He the son of [his grandfather] William Boyd 4th Earl Kilmarnock and [his grandmother] Anne Livingston Countess Kilmarnock.
In 1762 [his father] James Hay 15th Earl Erroll [aged 35] and [his mother] Isabella Carr Countess Erroll were married. She by marriage Countess Erroll. He the son of [his grandfather] William Boyd 4th Earl Kilmarnock and [his grandmother] Anne Livingston Countess Kilmarnock.
On 12th March 1772 William Hay 17th Earl Erroll was born to James Hay 15th Earl Erroll [aged 45] and Isabella Carr Countess Erroll.
On 3rd July 1778 [his father] James Hay 15th Earl Erroll [aged 52] died at Callendar House, Falkirk. His son [his brother] George [aged 11] succeeded 16th Earl Erroll.
In 1792 William Hay 17th Earl Erroll [aged 19] and Jane Bell Countess Erroll [aged 21] were married. She by marriage Countess Erroll. He the son of James Hay 15th Earl Erroll and Isabella Carr Countess Erroll.
Around 1794 [his daughter] Dulcibella Hay was born to William Hay 17th Earl Erroll [aged 21] and [his wife] Jane Bell Countess Erroll [aged 23]. She married 19th December 1821 Venerable Charles Nourse Wodehouse and had issue.
In 1794 [his wife] Jane Bell Countess Erroll [aged 23] died.
In 1796 William Hay 17th Earl Erroll [aged 23] and Alicia Eliot Countess Erroll [aged 21] were married. She by marriage Countess Erroll. He the son of James Hay 15th Earl Erroll and Isabella Carr Countess Erroll.
Around 1797 [his son] James Hay was born to William Hay 17th Earl Erroll [aged 24] and [his wife] Alicia Eliot Countess Erroll [aged 22].
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.
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In 1798 George Hay 16th Earl Erroll [aged 31] died at Callendar House, Falkirk. His brother William [aged 25] succeeded 17th Earl Erroll.
On 21st February 1801 [his son] William Hay 18th Earl Erroll was born to William Hay 17th Earl Erroll [aged 28] and [his wife] Alicia Eliot Countess Erroll [aged 26]. He married before 18th October 1821 Elizabeth Fitz-Clarence Countess Erroll and had issue.
In 1803 [his daughter] Harriet Jemima Hay was born to William Hay 17th Earl Erroll [aged 30] and [his wife] Alicia Eliot Countess Erroll [aged 28]. She married 1822 Daniel Gurney and had issue.
In 1807 [his son] Samuel Hay was born to William Hay 17th Earl Erroll [aged 34] and [his wife] Alicia Eliot Countess Erroll [aged 32].
On 3rd November 1808 [his mother] Isabella Carr Countess Erroll died.
In 1812 [his wife] Alicia Eliot Countess Erroll [aged 37] died.
On 16th June 1815 Henry William Paget 1st Marquess Anglesey [aged 47] fought and Algernon Frederick Greville [aged 16] fought.
[his son] James Hay [aged 18] was killed.
Fletcher Norton 3rd Baron Grantley [aged 16] fought.
General Mildmay Fane [aged 20] and Thomas Elmsley Croft 7th Baronet [aged 16] were wounded.
In 1816 William Hay 17th Earl Erroll [aged 43] and Harriet Somerville Countess Erroll were married. She by marriage Countess Erroll. He the son of James Hay 15th Earl Erroll and Isabella Carr Countess Erroll.
In 1817 [his son] Somerville Hay was born to William Hay 17th Earl Erroll [aged 44] and [his wife] Harriet Somerville Countess Erroll.
In 1819 [his daughter] Margaret Hay was born to William Hay 17th Earl Erroll [aged 46] and [his wife] Harriet Somerville Countess Erroll.
On 26th January 1819 William Hay 17th Earl Erroll [aged 46] died. His son William [aged 17] succeeded 18th Earl Erroll.
On 28th January 1864 [his former wife] Harriet Somerville Countess Erroll died.
Chronicle of Walter of Guisborough
A canon regular of the Augustinian Guisborough Priory, Yorkshire, formerly known as The Chronicle of Walter of Hemingburgh, describes the period from 1066 to 1346. Before 1274 the Chronicle is based on other works. Thereafter, the Chronicle is original, and a remarkable source for the events of the time. This book provides a translation of the Chronicle from that date. The Latin source for our translation is the 1849 work edited by Hans Claude Hamilton. Hamilton, in his preface, says: 'In the present work we behold perhaps one of the finest samples of our early chronicles, both as regards the value of the events recorded, and the correctness with which they are detailed; Nor will the pleasing style of composition be lightly passed over by those capable of seeing reflected from it the tokens of a vigorous and cultivated mind, and a favourable specimen of the learning and taste of the age in which it was framed.'
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[his daughter] Fanny Hay was born to William Hay 17th Earl Erroll and Harriet Somerville Countess Erroll.
[his daughter] Isabella Hay was born to William Hay 17th Earl Erroll and Alicia Eliot Countess Erroll.
[his daughter] Emma Hay was born to William Hay 17th Earl Erroll and Alicia Eliot Countess Erroll. She married before 29th August 1829 Rear-Admiral James Erskine-Wemyss and had issue.
[his daughter] Caroline Hay was born to William Hay 17th Earl Erroll and Alicia Eliot Countess Erroll.
Kings Wessex: Great x 20 Grand Son of King Edmund "Ironside" I of England
Kings Gwynedd: Great x 17 Grand Son of Owain "Great" King Gwynedd
Kings Seisyllwg: Great x 23 Grand Son of Hywel "Dda aka Good" King Seisyllwg King Deheubarth
Kings Powys: Great x 18 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 12 Grand Son of King Edward III of England
Kings Scotland: Great x 8 Grand Son of King James IV of Scotland
Kings France: Great x 14 Grand Son of King Philip IV of France
Kings Duke Aquitaine: Great x 25 Grand Son of Ranulf I Duke Aquitaine
Kings Spain: Great x 18 Grand Son of Alfonso VII King Castile VII King Leon
Great x 4 Grandfather: James Boyd 9th Lord Boyd
Great x 3 Grandfather: William Boyd 1st Earl Kilmarnock
Great x 2 Grandfather: William Boyd 2nd Earl Kilmarnock
Great x 1 Grandfather: William Boyd 3rd Earl Kilmarnock
Grandfather: William Boyd 4th Earl Kilmarnock
father: James Hay 15th Earl Erroll 7 x Great Grandson of King James IV of Scotland
Great x 4 Grandfather: Alexander Livingston 2nd Earl Linlithgow 2 x Great Grandson of King James IV of Scotland
Great x 3 Grandfather: George Livingston 3rd Earl Linlithgow 3 x Great Grandson of King James IV of Scotland
Great x 4 Grandmother: Elizabeth Gordon 3 x Great Granddaughter of King James IV of Scotland
Great x 2 Grandfather: Alexander Livingstone 3rd Earl Callendar 4 x Great Grandson of King James IV of Scotland
Great x 4 Grandfather: Patrick Maule 1st Earl Panmure 
Great x 3 Grandmother: Elizabeth Maule Countess Kinghorne and Linlithgow 7 x Great Granddaughter of King Edward III of England
Great x 4 Grandmother: Frances Stanhope 
6 x Great Granddaughter of King Edward III of England
Great x 1 Grandfather: James Livingston 5th Earl Linlithgow 4th Earl Callendar 5 x Great Grandson of King James IV of Scotland
Great x 4 Grandfather: James Graham 1st Marquess Montrose 
3 x Great Grandson of King James IV of Scotland
Great x 3 Grandfather: James Graham 2nd Marquess Montrose 4 x Great Grandson of King James IV of Scotland
Great x 2 Grandmother: Anne Graham 5 x Great Granddaughter of King James IV of Scotland
Great x 4 Grandfather: William Douglas 7th Earl Morton 5 x Great Grandson of King James I of Scotland
Great x 3 Grandmother: Isabel Douglas Marchioness Montrose 6 x Great Granddaughter of King James I of Scotland
Great x 4 Grandmother: Anne Keith Countess Morton 5 x Great Granddaughter of King James I of Scotland
Grandmother: Anne Livingston Countess Kilmarnock 6 x Great Granddaughter of King James IV of Scotland
Great x 4 Grandfather: Andrew Hay 8th Earl Erroll 
3 x Great Grandson of King James I of Scotland
Great x 3 Grandfather: George Hay 4 x Great Grandson of King James I of Scotland
Great x 4 Grandmother: Agnes Sinclair Countess Erroll 5 x Great Granddaughter of King Robert II of Scotland
Great x 2 Grandfather: John Hay 12th Earl Erroll 5 x Great Grandson of King James I of Scotland
Great x 1 Grandmother: Margaret Hay Countess Linlithgow 5 x Great Granddaughter of King James IV of Scotland
Great x 4 Grandfather: John Drummond 2nd Earl Perth
Great x 3 Grandfather: James Drummond 3rd Earl Perth 3 x Great Grandson of King James IV of Scotland
Great x 4 Grandmother: Jean Ker Countess Perth 2 x Great Granddaughter of King James IV of Scotland
Great x 2 Grandmother: Anne Drummond Countess Erroll 4 x Great Granddaughter of King James IV of Scotland
Great x 4 Grandfather: George Gordon 2nd Marquess Huntly 3 x Great Grandson of King James IV of Scotland
Great x 3 Grandmother: Anne Gordon 4 x Great Granddaughter of King James IV of Scotland
Great x 4 Grandmother: Anna Campbell Marchioness Huntly 5 x Great Granddaughter of King James I of Scotland
William Hay 17th Earl Erroll 8 x Great Grandson of King James IV of Scotland
Grandfather: William Carr 
mother: Isabella Carr Countess Erroll