Paternal Family Tree: Vere
Maternal Family Tree: Alice Sanford Countess of Oxford
Before 22nd February 1252 [his father] Robert de Vere 5th Earl of Oxford [aged 12] and [his mother] Alice Sanford Countess of Oxford were married. She by marriage Countess of Oxford. He the son of [his grandfather] Hugh de Vere 4th Earl of Oxford [aged 44] and [his grandmother] Hawise Quincy Countess Oxford.
On 24th June 1257 Robert de Vere 6th Earl of Oxford was born to Robert de Vere 5th Earl of Oxford [aged 17] and Alice Sanford Countess of Oxford.
In December 1263 [his grandfather] Hugh de Vere 4th Earl of Oxford [aged 55] died. He was buried at Earls Colne, Essex [Map]. His son [his father] Robert [aged 23] succeeded 5th Earl of Oxford.
Before 1282 Robert de Vere 6th Earl of Oxford [aged 24] and Margaret Mortimer Countess of Oxford were married. She by marriage Countess of Oxford. He the son of Robert de Vere 5th Earl of Oxford [aged 41] and Alice Sanford Countess of Oxford. They were fifth cousins. She a great x 2 granddaughter of King John of England.
Around 1282 [his son] Thomas de Vere was born to Robert de Vere 6th Earl of Oxford [aged 24] and [his wife] Margaret Mortimer Countess of Oxford. He a great x 3 grandson of King John of England. He married before 7th June 1315 his half fifth cousin Agnes Ros Baroness Tibetot, daughter of William Ros 1st Baron Ros Helmsley and Maud Vaux Baroness Ros.
In 1291 [his sister-in-law] Isabella Mortimer Countess Arundel died.
In 1296 [his father] Robert de Vere 5th Earl of Oxford [aged 56] died. In His son Robert [aged 38] succeeded 6th Earl of Oxford.
In 1297 [his wife] Margaret Mortimer Countess of Oxford died.
On 22nd July 1298 King Edward I of England [aged 59] defeated the Scottish army led by William Wallace during the 22nd July 1298 Battle of Falkirk at Falkirk [Map] using archers to firstly attack the Scottish shiltrons with the heavy cavalry with infantry completing the defeat.
John de Graham [aged 31] and John Stewart of Bonkyll [aged 52] were killed.
The English were described in the Falkirk Roll that lists 111 men with their armorials including:
Guy Beauchamp 10th Earl Warwick [aged 26].
Walter Beauchamp [aged 55].
Roger Bigod 5th Earl Norfolk [aged 53].
Humphrey Bohun 3rd Earl Hereford 2nd Earl Essex [aged 49].
Robert Clifford 1st Baron Clifford [aged 24].
Hugh "Elder" Despencer 1st Earl Winchester [aged 37].
William Ferrers 1st Baron Ferrers of Groby [aged 26].
Thomas Berkeley 6th and 1st Baron Berkeley [aged 52].
Maurice Berkeley 7th and 2nd Baron Berkeley [aged 27].
Henry Grey 1st Baron Grey of Codnor [aged 43].
Reginald Grey 1st Baron Grey of Wilton [aged 58].
John Grey 2nd Baron Grey of Wilton [aged 30].
John Mohun 1st Baron Dunster [aged 29].
Simon Montagu 1st Baron Montagu [aged 48].
William Ros 1st Baron Ros Helmsley [aged 43].
John Segrave 2nd Baron Segrave [aged 42].
Nicholas Segrave [aged 42].
Robert de Vere 6th Earl of Oxford [aged 41].
Alan Zouche 1st Baron Zouche Ashby [aged 30].
Thomas Plantagenet 2nd Earl of Leicester, 2nd Earl Lancaster, Earl of Salisbury and Lincoln [aged 20].
Henry Plantagenet 3rd Earl of Leicester 3rd Earl Lancaster [aged 17].
John Warenne 6th Earl of Surrey [aged 67].
Henry Percy 9th and 1st Baron Percy [aged 25].
Hugh Courtenay 1st or 9th Earl Devon [aged 21].
Richard Fitzalan 1st or 8th Earl of Arundel [aged 31].
Henry Beaumont Earl Buchan [aged 19].
John II Duke Brittany [aged 59].
Philip Darcy [aged 40].
Robert Fitzroger.
Robert Fitzwalter 1st Baron Fitzwalter [aged 51], or possiby a Roger Fitzwalter?.
Aymer de Valence 2nd Earl Pembroke [aged 23].
John Wake 1st Baron Wake of Liddell [aged 30], and.
Henry Lacy 4th Earl Lincoln, Earl Salisbury [aged 47].
William Scrope [aged 53] was knighted.
John Moels 1st Baron Moels [aged 29] fought.
John Lovell 1st Baron Lovel [aged 44] fought.
Scalacronica. 22nd July 1298. The said English lords recovered the said town of Berwick, and held it until the arrival of the King, who, returning from Gascony, approached Scotland in great force, entered it by Roxburgh, advanced to Templeliston and Linlithgow, and so towards Stirling, where William Wallace, who had mustered all the power of Scotland, lay in wait and undertook to give battle to the said King of England. They fought on this side of Falkirk on the day of the Magdalene in the year of grace 1298, when the Scots were defeated. Wherefore it was said long after that William Wallace had brought them to the revel if they would have danced.
Walter, brother of the Steward of Scotland, who had dismounted [to fight] on foot among the commons, was slain with more than ten thousand of the commons.1 William Wallace, who was on horseback, fled with the other Scottish lords who were present. At this battle, Antony de Bek, Bishop of Durham, who was with King Edward of England, had such abundance of retinue that in his column there were thirty-two banners and a trio of earls — the Earl of Warwick [aged 26], the Earl of Oxford [aged 41], and the Earl of Angus [aged 53].
Note 1. It was Sir John Stewart of Bonkill [aged 52] who was thus slain, at the head of his Selkirk bowmen. Gray's estimate of the slain is more reasonable than that of clerical writers. Walsingham puts the number at 60,000, probably three times as much as Wallace's whole force: Chronicle of Walter of Guisborough reduces it to 56,000.
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On 27th September 1299 [his brother] Hugh de Vere 1st Baron Vere [aged 42] was created 1st Baron Vere by writ of summons.
Before 7th June 1315 Thomas de Vere [aged 33] and Agnes Ros Baroness Tibetot were married. He the son of Robert de Vere 6th Earl of Oxford [aged 57] and Margaret Mortimer Countess of Oxford. They were half fifth cousins. He a great x 3 grandson of King John of England.
In 1318 [his brother] Hugh de Vere 1st Baron Vere [aged 60] died. Baron Vere extinct.
On 17th April 1331 Robert de Vere 6th Earl of Oxford [aged 73] died. His nephew John [aged 19] succeeded 7th Earl of Oxford.
Kings Wessex: Great x 12 Grand Son of King Edward "Elder" of the Anglo Saxons
Kings France: Great x 8 Grand Son of Hugh I King of the Franks
Kings Duke Aquitaine: Great x 12 Grand Son of Ranulf I Duke Aquitaine
Great x 4 Grandfather: Aubrey I de Vere 
Great x 3 Grandfather: Aubrey II de Vere
Great x 4 Grandmother: Beatrice Unknown
Great x 2 Grandfather: Aubrey de Vere 1st Earl of Oxford
Great x 4 Grandfather: Gilbert de Clare 
Great x 3 Grandmother: Adelize de Clare
Great x 4 Grandmother: Adeliza Clermont
Great x 1 Grandfather: Robert de Vere 3rd Earl of Oxford
Great x 4 Grandfather: Robert fitz Swein of Essex
Great x 3 Grandfather: Henry of Essex
Great x 2 Grandmother: Agnes Essex Countess of Oxford
Grandfather: Hugh de Vere 4th Earl of Oxford
Great x 2 Grandfather: Walter de Bolbec
Great x 1 Grandmother: Isabel de Bolebec Countess of Oxford
father: Robert de Vere 5th Earl of Oxford 7 x Great Grandson of Hugh I King of the Franks
Great x 3 Grandfather: Saer Quincy
Great x 2 Grandfather: Robert Quincy 8 x Great Grandson of King Edward "Elder" of the Anglo Saxons
Great x 4 Grandfather: Simon Senlis 1st Earl of Northampton, Earl of Huntingdon
Great x 3 Grandmother: Maud Senlis 7 x Great Granddaughter of King Edward "Elder" of the Anglo Saxons
Great x 4 Grandmother: Maud Queen Consort Scotland 6 x Great Granddaughter of King Edward "Elder" of the Anglo Saxons
Great x 1 Grandfather: Saer Quincy 1st Earl Winchester 9 x Great Grandson of King Edward "Elder" of the Anglo Saxons
Grandmother: Hawise Quincy Countess Oxford 6 x Great Granddaughter of Hugh I King of the Franks
Great x 4 Grandfather: Robert Beaumont 1st Earl of Leicester Count Meulan 
Great x 3 Grandfather: Robert Beaumont 2nd Earl of Leicester 3 x Great Grandson of Hugh I King of the Franks
Great x 4 Grandmother: Elizabeth Capet Countess Leicester, Meulan and Surrey 
2 x Great Granddaughter of Hugh I King of the Franks
Great x 2 Grandfather: Robert Beaumont 3rd Earl of Leicester 4 x Great Grandson of Hugh I King of the Franks
Great x 4 Grandfather: Raoul Gael
Great x 3 Grandmother: Amice Gael Countess Leicester
Great x 1 Grandmother: Margaret Beaumont Countess Winchester 5 x Great Granddaughter of Hugh I King of the Franks
Great x 4 Grandfather: Robert Grandesmil
Great x 3 Grandfather: William Grandesmil
Great x 2 Grandmother: Petronilla Grandesmil Countess Leicester
Robert de Vere 6th Earl of Oxford 8 x Great Grandson of Hugh I King of the Franks
mother: Alice Sanford Countess of Oxford