Biography of Isabel Beaumont Duchess Lancaster 1320-1361
Paternal Family Tree: Brienne
Maternal Family Tree: Maud Saye 1155-1222
After 1305 Thomas Wake 2nd Baron Wake of Liddell (age 8) and [her future sister-in-law] Blanche Plantagenet Baroness Wake Liddell were married. She by marriage Baroness Wake of Liddell. She the daughter of Henry Plantagenet 3rd Earl of Leicester 3rd Earl Lancaster (age 24) and Maud Chaworth (age 22). They were half third cousin once removed. He a great x 3 grandson of King John "Lackland" of England. She a great granddaughter of King Henry III of England.
In 1309 [her father] Henry Beaumont Earl Buchan (age 30) was created 1st Baron Beaumont.
Before 14 Jul 1310 [her father] Henry Beaumont Earl Buchan (age 31) and [her mother] 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.
Around 1320 Isabel Beaumont Duchess Lancaster was born to Henry Beaumont Earl Buchan (age 41) and Alice Comyn Baroness Beaumont.
Around 1328 Henry of Grosmont 1st Duke Lancaster (age 18) and 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.
In 1337 [her husband] Henry of Grosmont 1st Duke Lancaster (age 27) was created 1st Earl Lincoln. Isabel Beaumont Duchess Lancaster (age 17) by marriage Countess Lincoln.
On 04 Apr 1339 [her daughter] Maud Plantagenet Duchess Lower Bavaria was born to [her husband] Henry of Grosmont 1st Duke Lancaster (age 29) and Isabel Beaumont Duchess Lancaster (age 19) at Bolingbroke Castle, Lincolnshire [Map]. She a great x 2 granddaughter of King Henry III of England.
On 10 Mar 1340 [her father] Henry Beaumont Earl Buchan (age 61) died at Buchan. His son [her brother] John Beaumont 2nd Baron Beaumont (age 22) succeeded 2nd Baron Beaumont. [her sister-in-law] Eleanor Plantagenet Countess Arundel and Surrey (age 21) by marriage Baroness Beaumont.
Before 24 Jun 1340 John Mowbray 3rd Baron Mowbray (age 29) and [her sister-in-law] Joan Plantagenet Baroness Mowbray (age 28) were married. She by marriage Baroness Mowbray. She the daughter of Henry Plantagenet 3rd Earl of Leicester 3rd Earl Lancaster (age 59) and Maud Chaworth. He a great x 4 grandson of King Henry "Curtmantle" II of England. She a great granddaughter of King Henry III of England.
Before 10 Nov 1341 Henry Percy 11th and 3rd Baron Percy (age 20) and [her sister-in-law] Mary Plantagenet Baroness Percy (age 21) were married. She by marriage Baroness Percy of Alnwick. She the daughter of Henry Plantagenet 3rd Earl of Leicester 3rd Earl Lancaster (age 60) and Maud Chaworth. They were half third cousin once removed. He a great x 5 grandson of King Henry "Curtmantle" II of England. She a great granddaughter of King Henry III of England.
In 1344 [her son-in-law] Ralph Stafford and [her daughter] Maud Plantagenet Duchess Lower Bavaria (age 4) were married. She the daughter of Henry of Grosmont 1st Duke Lancaster (age 34) and Isabel Beaumont Duchess Lancaster (age 24). He the son of Ralph Stafford 1st Earl Stafford (age 42) and Margaret Audley Countess Stafford (age 26). They were third cousin once removed. He a great x 2 grandson of King Edward "Longshanks" I of England. She a great x 2 granddaughter of King Henry III of England.
In 1345 [her sister-in-law] Isabel Plantagenet (age 28) died.
On 25 Mar 1345 [her daughter] Blanche Plantagenet Duchess Lancaster was born to [her husband] Henry of Grosmont 1st Duke Lancaster (age 35) and Isabel Beaumont Duchess Lancaster (age 25) at Bolingbroke Castle, Lincolnshire [Map]. She a great x 2 granddaughter of King Henry III of England.
On 22 Sep 1345 [her father-in-law] Henry Plantagenet 3rd Earl of Leicester 3rd Earl Lancaster (age 64) died at Leicester Castle [Map]. His son [her husband] Henry of Grosmont 1st Duke Lancaster (age 35) succeeded 4th Earl of Leicester, 4th Earl Lancaster.
In 1349 [her husband] Henry of Grosmont 1st Duke Lancaster (age 39) was created 1st Earl Derby. Isabel Beaumont Duchess Lancaster (age 29) by marriage Countess Derby.
On 07 Jul 1349 [her sister-in-law] Joan Plantagenet Baroness Mowbray (age 37) died in @@Yorkshire.
In 1351 [her husband] Henry of Grosmont 1st Duke Lancaster (age 41) was created 1st Duke Lancaster by King Edward III of England (age 38). Isabel Beaumont Duchess Lancaster (age 31) by marriage Duchess Lancaster.
In 1352 [her son-in-law] William Wittelsbach I Duke Lower Bavaria (age 21) and [her daughter] Maud Plantagenet Duchess Lower Bavaria (age 12) were married in London. She by marriage Duchess Lower Bavaria. He by marriage Earl of Leicester. She the daughter of Henry of Grosmont 1st Duke Lancaster (age 42) and Isabel Beaumont Duchess Lancaster (age 32). He the son of Louis Wittelsbach IV Holy Roman Emperor and Margaret Hainault Holy Roman Empress (age 40). He a great x 4 grandson of King Henry "Curtmantle" II of England. She a great x 2 granddaughter of King Henry III of England.
On 19 May 1359 , or thereabouts, a double-royal wedding celebration took place at Reading Abbey [Map] whereby two children of King Edward III of England (age 46) were married:
[her son-in-law] John of Gaunt 1st Duke Lancaster (age 19) and [her daughter] Blanche Plantagenet Duchess Lancaster (age 14) were married. She by marriage Countess Richmond. She the daughter of Henry of Grosmont 1st Duke Lancaster (age 49) and Isabel Beaumont Duchess Lancaster (age 39). He the son of King Edward III of England (age 46) and Philippa of Hainault Queen Consort England (age 44). They were half second cousin once removed. She a great x 2 granddaughter of King Henry III of England.
John Hastings 2nd Earl Pembroke (age 11) and Margaret Plantagenet Countess of Pembroke (age 12) were married. At the time John Hastings 2nd Earl Pembroke (age 11) was a ward of King Edward III of England (age 46) who would enjoy the benefit of the substantial revenue of the Earldom of Pembroke until John came of age nine years later in 1368. She died two or so years later probably of plague. She the daughter of King Edward III of England (age 46) and Philippa of Hainault Queen Consort England (age 44). He the son of Laurence Hastings 1st Earl Pembroke and Agnes Mortimer Countess of Pembroke (age 42). They were half fourth cousins. He a great x 5 grandson of King John "Lackland" of England.
On 23 Mar 1361 [her former husband] Henry of Grosmont 1st Duke Lancaster (age 51) died at Leicester Castle [Map]. He was buried at Church of the Annunciation of our Lady of the Newark [Map].
Duke Lancaster, Earl Lincoln extinct.
[her daughter] Blanche Plantagenet Duchess Lancaster (age 15) succeeded 5th Countess Lancaster and 2nd Countess Derby. [her son-in-law] John of Gaunt 1st Duke Lancaster (age 21) by marriage Earl Lancaster, Earl Derby.
[her daughter] Maud Plantagenet Duchess Lower Bavaria (age 21) succeeded 5th Countess of Leicester.
Kings Wessex: Great x 9 Grand Daughter of King Edmund "Ironside" I of England
Kings Gwynedd: Great x 13 Grand Daughter of Maredudd ab Owain King Deheubarth King Powys King Gwynedd
Kings Seisyllwg: Great x 15 Grand Daughter of Hywel "Dda aka Good" King Seisyllwg King Deheubarth
Kings Powys: Great x 13 Grand Daughter of Maredudd ab Owain King Deheubarth King Powys King Gwynedd
Kings England: Great x 4 Grand Daughter of King Henry I "Beauclerc" England
Kings Scotland: Great x 7 Grand Daughter of Malcolm III King Scotland
Kings Franks: Great x 14 Grand Daughter of Louis "Pious" King Aquitaine I King Franks
Kings France: Great x 7 Grand Daughter of Robert "Pious" II King France
Philippa Lancaster Queen Consort Portugal x 1
Queen Elizabeth II of the United Kingdom x 8
Great x 2 Grandfather: Erard Brienne II Count Brienne
Great x 1 Grandfather: John de Brienne I King Jerusalem
Great x 3 Grandfather: Amadeus Montfaucon
Great x 2 Grandmother: Agnès Montfaucon Countess Brienne
GrandFather: Louis Brienne Viscount Beaumont 2 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandfather: Alfonso VII King Castile VII King Leon
Great x 3 Grandfather: Ferdinand II King Leon
Great x 4 Grandmother: Berenguela Barcelona Queen Consort Castile and Leon
Great x 2 Grandfather: Alfonso IX King Leon
Great x 4 Grandfather: Afonso "Conqueror Founder Great" I King Portugal
Great x 3 Grandmother: Urraca Burgundy Queen Consort Leon
Great x 4 Grandmother: Malfada Savoy Queen Consort Portugal
Great x 1 Grandmother: Beregaria Ivrea Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandfather: Sancho III King Castile
Great x 3 Grandfather: Alfonso VIII King Castile
Great x 4 Grandmother: Blanche Ramirez Queen Consort Castile
Great x 2 Grandmother: Berengaria Ivrea I Queen Castile Grand Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandfather: King Henry "Curtmantle" II of England Grand Son of King Henry I "Beauclerc" England
Great x 3 Grandmother: Eleanor Plantagenet Queen Consort Castile Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Eleanor of Aquitaine Queen Consort Franks and England
Father: Henry Beaumont Earl Buchan 3 x Great Grand Son of King Henry I "Beauclerc" England
Great x 4 Grandfather: Raoul Beaumont Sarthe 6th Viscount Beaumont
Great x 3 Grandfather: Roscelin Beaumont Sarthe 7th Viscount Beaumont
Great x 2 Grandfather: Richard Beaumont Sarthe I Viscount Grand Son of King Henry I "Beauclerc" England
Great x 4 Grandfather: King Henry I "Beauclerc" England Son of King William "Conqueror" I of England
Great x 3 Grandmother: Constance Fitzroy Viscountess Beaumont Daughter of King Henry I "Beauclerc" England
Great x 1 Grandfather: Raoul Beaumont Sarthe I Viscount Great Grand Son of King Henry I "Beauclerc" England
Great x 2 Grandmother: Lucie Aigle Viscountess
GrandMother: Agnes Beaumont Sarthe 2 x Great Grand Daughter of King Henry I "Beauclerc" England
Great x 1 Grandmother: Agnes de La Flèche Flèche Viscountess
Isabel Beaumont Duchess Lancaster 4 x Great Grand Daughter of King Henry I "Beauclerc" England
Great x 2 Grandfather: William Comyn Earl Buchan
Great x 1 Grandfather: Alexander Comyn 2nd Earl Buchan
Great x 2 Grandmother: Margaret Buchan Countess Buchan
GrandFather: Alexander Comyn 6 x Great Grand Son of King Henry I "Beauclerc" England
Great x 4 Grandfather: Robert Quincy
Great x 3 Grandfather: Saer Quincy 1st Earl Winchester
Great x 2 Grandfather: Roger de Quincy 2nd Earl Winchester
Great x 4 Grandfather: Robert Beaumont 3rd Earl of Leicester
Great x 3 Grandmother: Margaret Beaumont Countess Winchester
Great x 4 Grandmother: Petronilla Grandesmil Countess Leicester
Great x 1 Grandmother: Elizabeth Quincy Countess Buchan 5 x Great Grand Daughter of King Henry I "Beauclerc" England
Great x 3 Grandfather: Alan Lord of Galloway
Great x 2 Grandmother: Helen Galloway Countess Winchester 4 x Great Grand Daughter of King Henry I "Beauclerc" England
Great x 4 Grandfather: David Dunkeld 8th Earl Huntingdon
Great x 3 Grandmother: Margaret Dunkeld 3 x Great Grand Daughter of King Henry I "Beauclerc" England
Great x 4 Grandmother: Matilda Gernon Countess Huntingdon 2 x Great Grand Daughter of King Henry I "Beauclerc" England
Mother: Alice Comyn Baroness Beaumont 7 x Great Grand Daughter of King Henry I "Beauclerc" England
Great x 3 Grandfather: William Latimer
Great x 2 Grandfather: William Latimer of Corby
Great x 1 Grandfather: William Latimer 1st Baron Latimer of Corby
GrandMother: Joanna Latimer
Great x 2 Grandfather: Walter Ledet
Great x 1 Grandmother: Alicia Ledet Baroness Latimer Corby
Great x 3 Grandfather: Robert Lisle
Great x 2 Grandmother: Ermentrude Lisle
Great x 3 Grandmother: Alice Fitzgerald
Great x 4 Grandmother: Ermentrude Ferrers