Biography of Henry Beaumont Earl Buchan 1279-1340
Paternal Family Tree: Brienne
In or before 1279 Henry Beaumont Earl Buchan was born to Louis Brienne Viscount Beaumont (age 51) and Agnes Beaumont Sarthe and Agnes Beaumont Sarthe. He a great x 3 grandson of King Henry I "Beauclerc" England.
In or before 1279 [his father] Louis Brienne Viscount Beaumont (age 52) and [his mother] Agnes Beaumont Sarthe were married. He the son of John de Brienne I King Jerusalem and Beregaria Ivrea. He a great x 2 grandson of King Henry "Curtmantle" II of England. She a great x 2 granddaughter of King Henry I "Beauclerc" England. 
On 01 Sep 1297 [his father] Louis Brienne Viscount Beaumont (age 70) died.
On 22 Jul 1298 King Edward "Longshanks" I of England (age 59) defeated the Scottish army led by William Wallace during the 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 and John Stewart of Bonkyll (age 52) were killed.
The English were described in the Falkirk Roll that lists 111 men with their armorials including:
Guy Beauchamp 10th Earl Warwick (age 26).
Walter Beauchamp (age 55).
Roger Bigod 5th Earl Norfolk (age 53).
Humphrey Bohun 3rd Earl Hereford 2nd Earl Essex (age 49).
Robert Clifford 1st Baron Clifford (age 24).
Hugh "Elder" Despencer 1st Earl Winchester (age 37).
William Ferrers 1st Baron Ferrers of Groby (age 26).
Thomas Berkeley 6th and 1st Baron Berkeley (age 52).
Maurice Berkeley 7th and 2nd Baron Berkeley (age 27).
Henry Grey 1st Baron Grey of Codnor (age 43).
Reginald Grey 1st Baron Grey of Wilton (age 58).
John Grey 2nd Baron Grey of Wilton (age 30).
John Mohun 1st Baron Dunster (age 29).
Simon Montagu 1st Baron Montagu (age 48).
Roger Mortimer 1st Earl March (age 11).
William Ros 1st Baron Ros Helmsley (age 43).
John Segrave 2nd Baron Segrave (age 42).
Nicholas Segrave (age 42).
Robert de Vere 6th Earl of Oxford (age 41).
Alan Zouche 1st Baron Zouche Ashby (age 30).
Thomas Plantagenet 2nd Earl of Leicester, 2nd Earl Lancaster, Earl of Salisbury and Lincoln (age 20).
Henry Plantagenet 3rd Earl of Leicester 3rd Earl Lancaster (age 17).
John Warenne 6th Earl Surrey (age 67).
Henry Percy 9th and 1st Baron Percy (age 25).
Hugh Courtenay 9th Earl Devon (age 21).
Richard Fitzalan 8th Earl Arundel (age 31).
Henry Beaumont Earl Buchan (age 19).
John Capet II Duke Brittany (age 59).
Philip Darcy (age 40).
Robert Fitzroger.
Robert Fitzwalter 1st Baron Fitzwalter (age 51), or possiby a Roger Fitzwalter?.
Aymer de Valence 2nd Earl Pembroke (age 23).
John Wake 1st Baron Wake of Liddell (age 30), and.
Henry Lacy 4th Earl Lincoln, Earl Salisbury (age 47).
William Scrope (age 53) was knighted.
John Moels 1st Baron Moels (age 29) fought.
John Lovell 1st Baron Lovel (age 44) fought.
In Apr 1304 Thomas Grey (age 24) fought under Henry Beaumont Earl Buchan (age 25) at Siege of Stirling Castle.
In 1309 Henry Beaumont Earl Buchan (age 30) was created 1st Baron Beaumont.
Before 14 Jul 1310 Henry Beaumont Earl Buchan (age 31) and Alice Comyn Baroness Beaumont were married. She by marriage Baroness Beaumont. He by marriage Earl Buchan. He a great x 3 grandson of King Henry I "Beauclerc" England.
On 24 Jun 1314 the Scottish army of Robert "The Bruce" I King Scotland (age 39) including, James "Black" Douglas (age 28), heavily defeated the English army led by King Edward II of England (age 30) at the Battle of Bannockburn.
Gilbert de Clare 8th Earl Gloucester 7th Earl Hertford was killed. Earl Gloucester, Earl Hertford extinct.
John Comyn 4th Lord Baddenoch (age 20), Robert Felton 1st Baron Felton (age 44) and William Vesci were killed.
William Marshal 1st Baron Marshal (age 36) was killed. His son John Marshal 2nd Baron Marshal (age 22) succeeded 2nd Baron Marshal.
Robert Clifford 1st Baron Clifford (age 40) was killed. His son Roger Clifford 2nd Baron Clifford (age 14) succeeded 2nd Baron de Clifford.
John Lovell 2nd Baron Lovel (age 25) was killed. His son John Lovell 3rd Baron Lovel succeeded 3rd Baron Lovel of Titchmarsh.
Henry Bohun was killed by Robert "The Bruce" I King Scotland (age 39). He was buried in Llanthony Secunda Priory, Gloucestershire [Map].
Walter Fauconberg 2nd Baron Fauconberg (age 50) possilby died although his death is also reported as being on 31 Dec 1318.
Bartholomew Badlesmere 1st Baron Badlesmere (age 38), Humphrey Bohun 4th Earl Hereford 3rd Earl Essex (age 38), Goronwy ap Tudur Hen Tudor, Henry Beaumont Earl Buchan (age 35), Aymer de Valence 2nd Earl Pembroke (age 39) and Robert Umfraville 8th Earl Angus (age 37) fought.
Pain Tiptoft 1st Baron Tibetot (age 34) was killed. His son John Tiptoft 2nd Baron Tibetot succeeded 2nd Baron Tibetot.
John Montfort 2nd Baron Montfort (age 23) was killed. Peter Montfort 3rd Baron Montfort (age 23) succeeded 3rd Baron Montfort.
Thomas Grey (age 34) undertook a suicidal charge that contributed to the English defeat and subsequently blemished his career.
William Latimer 2nd Baron Latimer of Corby (age 38) was captured.
Michael Poynings (age 44) was killed.
On 25 Dec 1317 [his son] John Beaumont 2nd Baron Beaumont was born to Henry Beaumont Earl Buchan (age 38) and [his wife] Alice Comyn Baroness Beaumont.
Around 1320 [his daughter] Elizabeth Beaumont was born to Henry Beaumont Earl Buchan (age 41) and [his wife] Alice Comyn Baroness Beaumont.
Around 1320 [his daughter] Isabel Beaumont Duchess Lancaster was born to Henry Beaumont Earl Buchan (age 41) and [his wife] Alice Comyn Baroness Beaumont.
Froissart. At the last it fortuned, sir Henry Beaumont (age 47), son to the [his father] viscount Beaumont in England, entered into a barge and certain company with him, and spied this vessel and rowed after him so long that the ship wherein the king (age 42) was could not flee fast before them, but finally they were overtaken, and so brought again to the town of Bristow [Map] and delivered to the queen (age 31) and her son (age 13) as prisoners.
Before 1327 [his son-in-law] David III Strathbogie 11th Earl Atholl (age 18) and [his daughter] Katherine Beaumont Countess Atholl were married. She by marriage Countess Atholl. She the daughter of Henry Beaumont Earl Buchan (age 47) and Alice Comyn Baroness Beaumont. He the son of David Strathbogie 10th Earl Atholl. He a great x 4 grandson of King John "Lackland" of England. She a great x 4 granddaughter of King Henry I "Beauclerc" England.
Around 1328 [his son-in-law] Henry of Grosmont 1st Duke Lancaster (age 18) and [his daughter] Isabel Beaumont Duchess Lancaster (age 8) were married. She the daughter of Henry Beaumont Earl Buchan (age 49) and Alice Comyn Baroness Beaumont. He the son of Henry Plantagenet 3rd Earl of Leicester 3rd Earl Lancaster (age 47) and Maud Chaworth. They were fourth cousins. He a great grandson of King Henry III of England. She a great x 4 granddaughter of King Henry I "Beauclerc" England. 
Froissart. 17 Mar 1328. Then the earl marshal (age 27) and the earl of Kent (age 26), the king's uncle, made a peace between the king (age 15) and the earl of Lancaster (age 47), on whose part was sir Henry lord Beaumont (age 49), sir Fulke Fitz-Warin (age 43), sir Thomas Rocelin, sir William Trussel (age 48), sir Thomas Wither and about a hundred knights, who were all expelled out of England by the counsel of queen Isabel and the earl Mortimer: for he was so covetous, that he thought to have the most part of all their lands into his own hands, as it is more plainly shewed in the English chronicle, the which I pass over and follow mine author.
On 06 Nov 1330 [his son] John Beaumont 2nd Baron Beaumont (age 12) and [his daughter-in-law] Eleanor Plantagenet Countess Arundel and Surrey (age 12) were married. She the daughter of Henry Plantagenet 3rd Earl of Leicester 3rd Earl Lancaster (age 49) and Maud Chaworth. He the son of Henry Beaumont Earl Buchan (age 51) and Alice Comyn Baroness Beaumont. They were fourth cousins. He a great x 4 grandson of King Henry I "Beauclerc" England. She a great granddaughter of King Henry III of England.
On 19 Jul 1333 King Edward III of England (age 20) defeated the Scots army at the Battle of Halidon Hill near Berwick on Tweed [Map]. John of Eltham 1st Earl Cornwall (age 16) commanded.
English archers, just as at the Battle of Dupplin Moor one year previously, had a significant impact on the massed ranks of Scottish schiltrons. Edward's army included: Thomas of Brotherton 1st Earl Norfolk (age 33), who commanded the right wing, Hugh Courtenay 9th Earl Devon (age 56), Robert Pierrepont, Hugh Courtenay 10th Earl Devon (age 30), Henry Beaumont Earl Buchan (age 54) and John Sully (age 50). One of the few English casualties was John Neville (age 34) who was killed.
The Scottish army included King David II of Scotland (age 9). Alexander Bruce, Alan Stewart (age 61), James Stewart (age 57), John Stewart, William Douglas 1st Earl Atholl, Archibald Douglas (age 35) who were all killed.
Hugh 4th Earl Ross (age 36) was killed. His son William 5th Earl Ross succeeded 5th Earl Ross.
Malcolm Lennox 2nd Earl Lennox was killed. His son Domhnall Lennox Earl Lennox succeeded Earl Lennox.
Kenneth de Moravia Sutherland 4th Earl Sutherland was killed. His son William de Moravia Sutherland 5th Earl Sutherland succeeded 5th Earl Sutherland. Johanna Menteith Countess Sutherland by marriage Countess Sutherland.
On 10 Mar 1340 Henry Beaumont Earl Buchan (age 61) died at Buchan. His son [his son] John Beaumont 2nd Baron Beaumont (age 22) succeeded 2nd Baron Beaumont. [his daughter-in-law] Eleanor Plantagenet Countess Arundel and Surrey (age 21) by marriage Baroness Beaumont.
[his daughter] Katherine Beaumont Countess Atholl was born to Henry Beaumont Earl Buchan and Alice Comyn Baroness Beaumont.
[his daughter] Joan Beaumont was born to Henry Beaumont Earl Buchan and Alice Comyn Baroness Beaumont.
Kings Wessex: Great x 8 Grand Son of King Edmund "Ironside" I of England
Kings England: Great x 3 Grand Son of King Henry I "Beauclerc" England
Kings Scotland: Great x 6 Grand Son of Malcolm III King Scotland
Kings Franks: Great x 13 Grand Son of Louis "Pious" King Aquitaine I King Franks
Kings France: Great x 6 Grand Son of Robert "Pious" II King France
Philippa Lancaster Queen Consort Portugal x 1
Queen Anne Boleyn of England x 1
Queen Catherine Howard of England x 1
Queen Elizabeth II of the United Kingdom x 38
Great x 1 Grandfather: Erard Brienne II Count Brienne
GrandFather: John de Brienne I King Jerusalem
Great x 2 Grandfather: Amadeus Montfaucon
Great x 1 Grandmother: Agnès Montfaucon Countess Brienne
Father: Louis Brienne Viscount Beaumont 2 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandfather: Raymond Ivrea
Great x 3 Grandfather: Alfonso VII King Castile VII King Leon
Great x 4 Grandmother: Urracca "Reckless" Jiménez Queen Consort Aragon and Pamplona
Great x 2 Grandfather: Ferdinand II King Leon
Great x 4 Grandfather: Raymond Berenguer Barcelona III Count Barcelona
Great x 3 Grandmother: Berenguela Barcelona Queen Consort Castile and Leon
Great x 4 Grandmother: Douce Gevaudan Countess Barcelona
Great x 1 Grandfather: Alfonso IX King Leon
Great x 4 Grandfather: Henry Burgundy Count Portugal
Great x 3 Grandfather: Afonso "Conqueror Founder Great" I King Portugal
Great x 4 Grandmother: Teresa Alfónsez Jiménez
Great x 2 Grandmother: Urraca Burgundy Queen Consort Leon
Great x 4 Grandfather: Amadeus Savoy III Count Savoy
Great x 3 Grandmother: Malfada Savoy Queen Consort Portugal
Great x 4 Grandmother: Mahaut Albon Countess Savoy
GrandMother: Beregaria Ivrea Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandfather: Alfonso VII King Castile VII King Leon
Great x 3 Grandfather: Sancho III King Castile
Great x 4 Grandmother: Berenguela Barcelona Queen Consort Castile and Leon
Great x 2 Grandfather: Alfonso VIII King Castile
Great x 4 Grandfather: García "Restorer" IV King Navarre
Great x 3 Grandmother: Blanche Ramirez Queen Consort Castile
Great x 4 Grandmother: Marguerite Aigle Queen Consort Navarre
Great x 1 Grandmother: Berengaria Ivrea I Queen Castile Grand Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandfather: Geoffrey Plantagenet Duke Normandy
Great x 3 Grandfather: King Henry "Curtmantle" II of England Grand Son of King Henry I "Beauclerc" England
Great x 4 Grandmother: Empress Matilda
Daughter of King Henry I "Beauclerc" England
Great x 2 Grandmother: Eleanor Plantagenet Queen Consort Castile Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandfather: William "Saint" Poitiers X Duke Aquitaine
Great x 3 Grandmother: Eleanor of Aquitaine Queen Consort Franks and England
Great x 4 Grandmother: Aenor Chatellerault Duchess Aquitaine
Henry Beaumont Earl Buchan 3 x Great Grand Son of King Henry I "Beauclerc" England
Great x 4 Grandfather: Hubert Beaumont Sarthe 5th Viscount Beaumont
Great x 3 Grandfather: Raoul Beaumont Sarthe 6th Viscount Beaumont
Great x 2 Grandfather: Roscelin Beaumont Sarthe 7th Viscount Beaumont
Great x 1 Grandfather: Richard Beaumont Sarthe I Viscount Grand Son of King Henry I "Beauclerc" England
Great x 4 Grandfather: King William "Conqueror" I of England -2 x Great Grand Son of King William "Conqueror" I of England
Great x 3 Grandfather: King Henry I "Beauclerc" England Son of King William "Conqueror" I of England
Great x 4 Grandmother: Matilda Flanders Queen Consort England
Great x 2 Grandmother: Constance Fitzroy Viscountess Beaumont Daughter of King Henry I "Beauclerc" England
GrandFather: Raoul Beaumont Sarthe I Viscount Great Grand Son of King Henry I "Beauclerc" England
Great x 1 Grandmother: Lucie Aigle Viscountess
Mother: Agnes Beaumont Sarthe 2 x Great Grand Daughter of King Henry I "Beauclerc" England
GrandMother: Agnes de La Flèche Flèche Viscountess