Henrici Quinti, Angliæ Regis, Gesta, is a first-hand account of the Agincourt Campaign, and subsequent events to his death in 1422. The author of the first part was a Chaplain in King Henry's retinue who was present from King Henry's departure at Southampton in 1415, at the siege of Harfleur, the battle of Agincourt, and the celebrations on King Henry's return to London. The second part, by another writer, relates the events that took place including the negotiations at Troye, Henry's marriage and his death in 1422.
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Paternal Family Tree: Courtenay
Before 11th March 1676 [his father] Francis Courtenay [aged 25] and [his mother] Mary Boevey were married. He the son of [his grandfather] William Courtenay 5th Earl Devon [aged 47] and [his grandmother] Margaret Waller Countess Devon.
On 11th March 1676 William Courtenay 6th Earl Devon was born to [his father] Francis Courtenay [aged 25] and [his mother] Mary Boevey.
In 1699 [his father] Francis Courtenay [aged 48] died.
In 1701 William Courtenay 6th Earl Devon [aged 24] was elected MP Devon.
In 1702 William Courtenay 6th Earl Devon [aged 25] was elected MP Devon.
On 1st August 1702 [his grandfather] William Courtenay 5th Earl Devon [aged 73] died. His grandson William [aged 26] de jure 6th Earl Devon.
In 1705 William Courtenay 6th Earl Devon [aged 28] was elected MP Devon.
In 1708 William Courtenay 6th Earl Devon [aged 31] was elected MP Devon.
Before 11th February 1709 William Courtenay 6th Earl Devon [aged 32] and Anne Bertie Countess Devon were married. She the daughter of James Bertie 1st Earl of Abingdon and Eleanor Lee Countess Abingdon.
On 11th February 1709 [his son] William Courtenay 7th Earl Devon was born to William Courtenay 6th Earl Devon [aged 32] and [his wife] Anne Bertie Countess Devon. He married 2nd April 1741 Frances Finch Countess Devon, daughter of Heneage Finch 2nd Earl Aylesford and Mary Fisher Countess Aylesford, and had issue.
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.
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On 22nd July 1712 William Courtenay 6th Earl Devon [aged 36] was elected MP Devon.
In 1713 William Courtenay 6th Earl Devon [aged 36] was elected MP Devon.
In 1714 William Courtenay 6th Earl Devon [aged 37] was appointed Lord Lieutenant of Devon.
On 8th June 1714 [his son] Henry Reginald Courtenay was born to William Courtenay 6th Earl Devon [aged 38] and [his wife] Anne Bertie Countess Devon. He married 14th April 1737 his third cousin twice removed Catherine Bathurst and had issue.
On 31st October 1718 [his wife] Anne Bertie Countess Devon died.
On 6th October 1735 William Courtenay 6th Earl Devon [aged 59] died. His son William [aged 26] de jure 7th Earl Devon.
[his daughter] Eleanor Courtenay was born to William Courtenay 6th Earl Devon and Anne Bertie Countess Devon. She married 1740 John Francis Bassett.
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 20 Grand Son of King Harold II of England
Kings England: Great x 10 Grand Son of King Edward III of England
Kings Scotland: Great x 19 Grand Son of King Duncan I of Scotland
Kings Franks: Great x 26 Grand Son of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Kings France: Great x 21 Grand Son of Hugh I King of the Franks
Kings Duke Aquitaine: Great x 24 Grand Son of Ranulf I Duke Aquitaine
Great x 4 Grandfather: George Courtenay 7 x Great Grand Son of King Edward I of England
Great x 3 Grandfather: William Courtenay 2nd Earl Devon 8 x Great Grand Son of King Edward I of England
Great x 4 Grandmother: Katherine St Leger 
7 x Great Grand Daughter of King Edward I of England
Great x 2 Grandfather: William Courtenay 3rd Earl Devon 7 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: John Paulet 2nd Marquess Winchester 8 x Great Grand Son of King Henry III of England
Great x 3 Grandmother: Elizabeth Paulett Countess Devon 6 x Great Grand Daughter of King Edward III of England
Great x 4 Grandmother: Elizabeth Willoughby 
5 x Great Grand Daughter of King Edward III of England
Great x 1 Grandfather: Francis Courtenay 4th Earl Devon 7 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: Thomas Manners 1st Earl of Rutland 
4 x Great Grand Son of King Edward III of England
Great x 3 Grandfather: Henry Manners 2nd Earl of Rutland 5 x Great Grand Son of King Edward III of England
Great x 4 Grandmother: Eleanor Paston Countess Rutland 
10 x Great Grand Daughter of King John of England
Great x 2 Grandmother: Elizabeth Manners 6 x Great Grand Daughter of King Edward III of England
Great x 4 Grandfather: Ralph Neville 4th Earl of Westmoreland 
5 x Great Grand Son of King Edward III of England
Great x 3 Grandmother: Margaret Neville Countess Rutland 6 x Great Grand Daughter of King Edward III of England
Great x 4 Grandmother: Katherine Stafford Countess of Westmoreland 
5 x Great Grand Daughter of King Edward III of England
GrandFather: William Courtenay 5th Earl Devon 8 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: William Pole
Great x 3 Grandfather: William Pole
Great x 2 Grandfather: William Pole of Colcombe House
Great x 1 Grandmother: Mary Pole
Great x 4 Grandfather: John Peryam
Great x 3 Grandfather: William Peryam of Little Fulford
Great x 2 Grandmother: Mary Peryam
Great x 4 Grandfather: John Parker of North Molton 
Great x 3 Grandmother: Anne Parker
Father: Francis Courtenay 9 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: William Waller of Groombridge
Great x 3 Grandfather: Walter Waller of Groombridge
Great x 2 Grandfather: Thomas Waller
Great x 1 Grandfather: William Waller 7 x Great Grand Son of King Edward III of England
Great x 4 Grandfather: John Lennard
Great x 3 Grandfather: Samson Lennard Baron Dacre Gilsland
Great x 4 Grandmother: Elizabeth Hamon
Great x 2 Grandmother: Margaret Lennard 6 x Great Grand Daughter of King Edward III of England
Great x 4 Grandfather: Thomas Fiennes 9th Baron Dacre Gilsland 
5 x Great Grand Son of King Edward III of England
Great x 3 Grandmother: Margaret Fiennes 11th Baroness Dacre of Gilsland 5 x Great Grand Daughter of King Edward III of England
Great x 4 Grandmother: Mary Neville Baroness Dacre of Gilsland 4 x Great Grand Daughter of King Edward III of England
GrandMother: Margaret Waller Countess Devon 8 x Great Grand Daughter of King Edward III of England
Great x 3 Grandfather: Richard Reynell
Great x 2 Grandfather: Richard Reynell
Great x 1 Grandmother: Jane Reynell
William Courtenay 6th Earl Devon 10 x Great Grand Son of King Edward III of England
Great x 1 Grandfather: Andreas Boevey
GrandFather: William Boevey
Mother: Mary Boevey