Biography of John Valois IV Duke Brabant 1403-1427
Paternal Family Tree: Capet
Maternal Family Tree: Clemence Roches Countess Blois
On 21 Feb 1402 [his father] Anthony Valois Duke Brabant (age 17) and [his mother] Jeanne Luxemburg Duchess Brabant were married at Arras. She by marriage Duchess Brabant. He the son of Philip "Bold" Valois II Duke Burgundy (age 60) and Margaret Dampierre Duchess Burgundy (age 54). They were half third cousin once removed. He a great x 3 grandson of King Edward "Longshanks" I of England. She a great x 2 granddaughter of King Edward "Longshanks" I of England. 
On 11 Jun 1403 John Valois IV Duke Brabant was born to Anthony Valois Duke Brabant (age 18) and Jeanne Luxemburg Duchess Brabant. He a great x 3 grandson of King Edward "Longshanks" I of England.
In 1407 [his mother] Jeanne Luxemburg Duchess Brabant died.
On 16 Jul 1409 [his father] Anthony Valois Duke Brabant (age 24) and [his step-mother] Elisabeth of Görlitz Duchess Brabant (age 18) were married. She by marriage Duchess Brabant. He the son of Philip "Bold" Valois II Duke Burgundy and Margaret Dampierre Duchess Burgundy. They were second cousins. He a great x 3 grandson of King Edward "Longshanks" I of England.
On 25 Oct 1415 King Henry V of England (age 29) defeated the French army at the Battle of Agincourt. King Henry V of England (age 29) commanded the Main Battle. Thomas Camoys 1st Baron Camoys (age 64) commanded the Rearguard. 
Richard de Vere 11th Earl of Oxford (age 30) commanded. Humphrey Lancaster 1st Duke Gloucester (age 25) was wounded, and was protected by his brother King Henry V of England (age 29).
Edward York 2nd Duke of York 1st Duke Albemarle (age 42), commander of the Vanguard, was killed; the most senior English casualty. Duke Albemarle aka Aumale, Earl of Rutland and Earl Cork extinct. Richard Plantagenet 3rd Duke York (age 4) inherited his estates including Conisbrough Castle [Map].
John Fortescue (age 35), Dafydd Gam Brecon (age 35) and Edward Burnell (age 44) and Roger Vaughan of Bredwardine (age 38) were killed.
Michael de la Pole 3rd Earl Suffolk (age 21) was killed. His brother William "Jackanapes" de la Pole 1st Duke of Suffolk (age 19) succeeded 4th Earl Suffolk.
The English included: Louis Robbessart (age 25), Richard Beauchamp 13th Earl Warwick (age 33), William Botreaux 3rd Baron Botreaux (age 26), William Bourchier 1st Count Eu (age 41), John Cornwall 1st Baron Fanhope 1st Baron Milbroke (age 51), Edward Courtenay (age 30), Ralph Cromwell 3rd Baron Cromwell (age 12), Thomas Dutton (age 19), Edmund Ferrers 6th Baron Ferrers of Chartley (age 29), Roger Fiennes (age 31), Henry Fitzhugh 3rd Baron Fitzhugh (age 57), John Grey (age 28), John Grey 1st Earl Tankerville (age 31), William Harrington (age 42) as the King's Standard Bearer, Walter Hungerford 1st Baron Hungerford (age 37), Piers Legh (age 26) (wounded), Alfred Longford, Thomas Montagu 1st Count Perche 4th Earl Salisbury (age 27), Thomas Morley 6th Baron Marshal 5th Baron Morley (age 22), John Rodney, Richard Scrope 3rd Baron Scrope of Bolton (age 22), Robert Strelley (age 18), James Tuchet 5th Baron Audley, 2nd Baron Tuchet (age 17), Robert Umfraville (age 52), Thomas West 2nd Baron West (age 35), Robert Willoughby 6th Baron Willoughby (age 30). Thomas Erpingham (age 60) commanded the archers. Thomas Rempston (age 26) was present. Thomas Strickland (age 48) carried the Banner of St George.
Thomas Tunstall (age 57) was killed.
The Welsh included: William ap Thomas "Blue Knight of Gwent" Herbert (age 35), Walter Sais (age 95), Roger Vaughan (age 70) and his son Roger Vaughan (age 5). Owen Tudor (age 15) is believed to have been present as a squire.
The French army suffered significant casualties. Charles Albret (age 46), [his uncle] Philip Valois II Count Nevers (age 26), John of Bar (age 35), Jacques Chatillon (age 48), David Rambures (age 51) and his three sons: Jean Rambures, Hugues Rambures, Philippe Rambures, [his grandfather] Waleran Luxemburg (age 60) and Hector de Chartres were killed.
Charles Valois Duke Orléans (age 20) was captured by Richard Waller (age 20) for which he was knighted on the battlefield by King Henry V of England (age 29).
John Bourbon I Duke Bourbon (age 34) and Charles Artois Count Eu (age 21) were captured.
Robert of Bar Count Soissons Count Marle (age 25) was killed. His daughter Jeanne of Bar Countess Soissons succeeded Countess Soissons 1367.
Edward of Bar III Duke of Bar (age 38) was killed. His brother Cardinal Louis of Bar (age 38) succeeded I Duke Bar.
John Valois I Duke Alençon was killed. His son John Valois II Duke Alençon (age 6) succeeded II Duke Alençon.
Frederick Metz I Count Vaudémont (age 47) was killed. His son Antoine Count of Vaudémont (age 15) succeeded Count Vaudémont.
[his father] Anthony Valois Duke Brabant (age 31) was killed. His son John Valois IV Duke Brabant (age 12) succeeded IV Duke Brabant. [his future wife] Jacqueline Wittelsbach Duchess Brabant and Gloucester (age 14) by marriage Duchess Brabant.
Jean II Le Maingre "Boucicaut" (age 49) was captured.
Georges de La Trémoille (age 33) was captured.
In 1418 John Valois IV Duke Brabant (age 14) and Jacqueline Wittelsbach Duchess Brabant and Gloucester (age 16) were married. She the daughter of William Wittelsbach IV Count Holland VI Count Hainault V Count Zeeland and Margaret Valois Countess Holland (age 43). He the son of Anthony Valois Duke Brabant and Jeanne Luxemburg Duchess Brabant. They were first cousins. He a great x 3 grandson of King Edward "Longshanks" I of England. She a great x 4 granddaughter of King Edward "Longshanks" I of England.
In 1421 Eleanor Cobham Duchess of Gloucester (age 21) became a Lady-in-Waiting to [his wife] Jacqueline Wittelsbach Duchess Brabant and Gloucester (age 19) who had travelled to England following her divorce from John Valois IV Duke Brabant (age 17).
Polydore Vergil. 1422. 4. In that selfsame year, which was the year of human salvation 1422 and the first of Henry’s reign, Duke Humphrey of Gloucester (age 31) married [his wife] Princess Jacobina of Bavaria (age 20), who had been marked to Duke John of Brabant (age 18), still alive. This caused men great astonishment, because, contrary to right and law, Gloucester (age 31) wished to marry another man’s wife. But for Gloucester (age 31) marriage with a wealthy woman counted for more than astonishment or talk. And Dukes John of Bedford (age 32), Philippe of Burgundy (age 25), and John of Britanny (age 32) met at Amiens and renewed their treaty, with the added conditions that they would each fight to defend the others, and all of them would fight to defend King Henry and keep him from harm, and this treaty was strengthened by a new kinship, with Burgundy’s sister Anne (age 17) being bestowed on Bedford (age 32), who was unmarried at the time. When the meeting broke up, he took her to Troyes [Map] and they celebrated a very splendid marriage, and then he returned to Paris. Meanwhile some citizens who lived under English rule unwillingly, seeing that Bedford (age 32) was far away, decided to take Charles (age 18) into the city. Thinking that such an advantage should not be ignored, they advised Charles (age 18) of their plan and announced a day on which he should come to the gates. This scheme made no headway, but rather was the ruin of its authors. Bedford (age 32) came in time, and quicker than the conspirators had expected, and, learning of the conspiracy, he executed those he discovered to be participants therein. After these things, learning from this episode the true disposition of the burghers, with skill and care the duke began to fortify the city, station watches, anticipate French schemes, wishing nothing on his part to be left undone, thinking nothing on their part to be trustworthy.
Around 1423 Humphrey Lancaster 1st Duke Gloucester (age 32) and [his wife] Jacqueline Wittelsbach Duchess Brabant and Gloucester (age 21) were married. The marriage was annulled in 1428. She the daughter of William Wittelsbach IV Count Holland VI Count Hainault V Count Zeeland and Margaret Valois Countess Holland (age 48). He the son of King Henry IV of England and Mary Bohun. They were third cousins. She a great x 4 granddaughter of King Edward "Longshanks" I of England. 
On 17 Apr 1427 John Valois IV Duke Brabant (age 23) died. His brother [his brother] Philip Valois I Duke Brabant (age 22) succeeded I Duke Brabant.
On 08 Oct 1436 [his former wife] Jacqueline Wittelsbach Duchess Brabant and Gloucester (age 35) died.
John Valois and Jacqueline Wittelsbach Duchess Brabant and Gloucester were married. She the daughter of William Wittelsbach IV Count Holland VI Count Hainault V Count Zeeland and Margaret Valois Countess Holland. He the son of Charles "Beloved Mad" VI King France and Isabeau Wittelsbach Queen Consort France. They were second cousins. He a great x 5 grandson of King Henry III of England. She a great x 4 granddaughter of King Edward "Longshanks" I of England.
Frank II Zeeland and Jacqueline Wittelsbach Duchess Brabant and Gloucester were married. She the daughter of William Wittelsbach IV Count Holland VI Count Hainault V Count Zeeland and Margaret Valois Countess Holland. She a great x 4 granddaughter of King Edward "Longshanks" I of England.
[his father] Anthony Valois Duke Brabant succeeded Duke Brabant.
Kings Wessex: Great x 11 Grand Son of King Edmund "Ironside" I of England
Kings Gwynedd: Great x 8 Grand Son of Owain "Great" King Gwynedd
Kings Seisyllwg: Great x 14 Grand Son of Hywel "Dda aka Good" King Seisyllwg King Deheubarth
Kings Powys: Great x 9 Grand Son of Maredudd ap Bleddyn King Powys
Kings England: Great x 3 Grand Son of King Edward "Longshanks" I of England
Kings Scotland: Great x 9 Grand Son of Malcolm III King Scotland
Kings Franks: Great x 7 Grand Son of Louis VII King Franks
Kings France: Great x 3 Grand Son of Philip V King France I King Navarre
Great x 4 Grandfather: Philip "Bold" III King France 2 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 3 Grandfather: Charles Valois I Count Valois 3 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Isabella Barcelona Queen Consort France
Great x 2 Grandfather: King Philip "Fortunate" VI of France 4 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandfather: Charles II King Naples 2 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 3 Grandmother: Margaret Capet Countess Valois 3 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Mary of Hungary Queen Consort Naples
Great x 1 Grandfather: King John "The Good" II of France 4 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandfather: Hugh IV Duke Burgundy 4 x Great Grand Son of King William "Conqueror" I of England
Great x 3 Grandfather: Robert II Duke Burgundy 5 x Great Grand Son of King William "Conqueror" I of England
Great x 4 Grandmother: Yolande Capet Duchess Burgundy
Great x 2 Grandmother: Joan "Lame" Burgundy Queen Consort France 3 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandfather: King Louis IX of France Great Grand Son of King Henry "Curtmantle" II of England
Great x 3 Grandmother: Agnes Capet Duchess Burgundy 2 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Margaret Provence Queen Consort France
GrandFather: Philip "Bold" Valois II Duke Burgundy 5 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandfather: Henry Luxemburg VI Count Luxemburg 5 x Great Grand Son of King William "Conqueror" I of England
Great x 3 Grandfather: Henry Luxemburg VII Holy Roman Emperor 5 x Great Grand Son of King William "Conqueror" I of England
Great x 4 Grandmother: Beatrice Avesnes Countess Luxemburg 4 x Great Grand Daughter of King William "Conqueror" I of England
Great x 2 Grandfather: King John I of Bohemia 6 x Great Grand Son of King William "Conqueror" I of England
Great x 4 Grandfather: John I Brabant
Great x 3 Grandmother: Margaret Brabant Countess Luxemburg and Namur
Great x 1 Grandmother: Bonne Luxemburg Queen Consort France 7 x Great Grand Daughter of King William "Conqueror" I of England
Great x 4 Grandfather: Ottokar "Iron King" II King Bohemia
Great x 3 Grandfather: King Wenceslaus II of Bohemia and Poland
Great x 4 Grandmother: Kunigunda Rostislavna Přemyslovna
Great x 2 Grandmother: Queen Elizabeth of Bohemia
Great x 4 Grandfather: Rudolph I King Romans
Great x 3 Grandmother: Queen Judith of Bohemia and Poland
Great x 4 Grandmother: Gertrude Hohenburg
Father: Anthony Valois Duke Brabant 3 x Great Grand Son of King Edward "Longshanks" I of England
Great x 4 Grandfather: Robert Dampierre III Count Flanders 5 x Great Grand Son of King William "Conqueror" I of England
Great x 3 Grandfather: Louis Dampierre I Count Nevers 6 x Great Grand Son of King William "Conqueror" I of England
Great x 4 Grandmother: Yolande Burgundy II Countess Nevers and Flanders 6 x Great Grand Daughter of King William "Conqueror" I of England
Great x 2 Grandfather: Louis Dampierre II Count Nevers I Count Flanders 7 x Great Grand Son of King William "Conqueror" I of England
Great x 4 Grandfather: Hugh IV Count Rethel
Great x 3 Grandmother: Joan Rethel Countess Nevers and Rethel
Great x 1 Grandfather: Louis Dampierre III Count Nevers II Count Flanders 6 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandfather: Philip "The Fair" IV King France 3 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 3 Grandfather: Philip V King France I King Navarre 4 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Joan Blois I Queen Navarre
3 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 2 Grandmother: Margaret Capet Countess Nevers amd Flanders 5 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandfather: Otto Ivrea IV Count Burgundy
5 x Great Grand Son of King William "Conqueror" I of England
Great x 3 Grandmother: Joan of Burgundy Queen Consort France 4 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Mahaut Artois Countess Burgundy 3 x Great Grand Daughter of King Henry "Curtmantle" II of England
GrandMother: Margaret Dampierre Duchess Burgundy 2 x Great Grand Daughter of King Edward "Longshanks" I of England
Great x 4 Grandfather: John Reginar I Duke Brabant 5 x Great Grand Son of King William "Conqueror" I of England
Great x 3 Grandfather: John "Peaceful" Reginar II Duke Brabant 6 x Great Grand Son of King William "Conqueror" I of England
Great x 4 Grandmother: Margaret Dampierre Duchess Brabant 5 x Great Grand Daughter of King William "Conqueror" I of England
Great x 2 Grandfather: John Brabant III Duke Brabant Grand Son of King Edward "Longshanks" I of England
Great x 4 Grandfather: King Edward "Longshanks" I of England Son of King Henry III of England
Great x 3 Grandmother: Margaret Plantagenet Duchess Brabant Daughter of King Edward "Longshanks" I of England
Great x 4 Grandmother: Eleanor of Castile Queen Consort England 2 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 1 Grandmother: Margaret Brabant Countess Nevers and Flanders Great Grand Daughter of King Edward "Longshanks" I of England
Great x 4 Grandfather: Philip "Bold" III King France 2 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 3 Grandfather: Louis I Count Évreux 3 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Maria Reginar Queen Consort France 5 x Great Grand Daughter of King William "Conqueror" I of England
Great x 2 Grandmother: Marie Évreux Duchess of Brabant 2 x Great Grand Daughter of King Henry III of England
Great x 4 Grandfather: Philip Artois 3 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 3 Grandmother: Margaret Artois Countess Évreux Great Grand Daughter of King Henry III of England
Great x 4 Grandmother: Blanche Capet Grand Daughter of King Henry III of England
John Valois IV Duke Brabant 3 x Great Grand Son of King Edward "Longshanks" I of England
Great x 4 Grandfather: Waleran I of Luxemburg 5 x Great Grand Son of King William "Conqueror" I of England
Great x 3 Grandfather: Waleran II of Luxemburg 6 x Great Grand Son of King William "Conqueror" I of England
Great x 4 Grandmother: Jeanne Dame Beaurevoir
Great x 2 Grandfather: John Luxemburg Lord of Ligby 7 x Great Grand Son of King William "Conqueror" I of England
Great x 1 Grandfather: Guy of Luxemburg I Count Saint Pol and Ligny 8 x Great Grand Son of King William "Conqueror" I of England
Great x 4 Grandfather: Guillaume Dampierre 5 x Great Grand Son of King William "Conqueror" I of England
Great x 3 Grandfather: Guy of Dampierre Richebourg 6 x Great Grand Son of King William "Conqueror" I of England
Great x 4 Grandmother: Alix Clermont 5 x Great Grand Daughter of King Henry I "Beauclerc" England
Great x 2 Grandmother: Alix Dampierre 7 x Great Grand Daughter of King William "Conqueror" I of England
GrandFather: Waleran Luxemburg 3 x Great Grand Son of King Henry III of England
Great x 4 Grandfather: Guy Chatillon III Count Saint Pol 4 x Great Grand Son of King William "Conqueror" I of England
Great x 3 Grandfather: Guy Chatillon IV Count Saint Pol 5 x Great Grand Son of King William "Conqueror" I of England
Great x 4 Grandmother: Matilda Reginar Countess Saint Pol 4 x Great Grand Daughter of King William "Conqueror" I of England
Great x 2 Grandfather: Jean Chatillon Count Saint Pol Great Grand Son of King Henry III of England
Great x 4 Grandfather: John Capet II Duke Brittany 5 x Great Grand Son of King William "Conqueror" I of England
Great x 3 Grandmother: Marie Capet Grand Daughter of King Henry III of England
Great x 4 Grandmother: Beatrice Plantagenet Daughter of King Henry III of England
Great x 1 Grandmother: Mathilde Chatillon Countess Saint Pol 2 x Great Grand Daughter of King Henry III of England
Great x 4 Grandfather: William Fiennes
Great x 3 Grandfather: Jean Fiennes 4 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Blanche Beaumont
3 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 2 Grandmother: Jeanne Fiennes 5 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandfather: Guy Dampierre Count Flanders 4 x Great Grand Son of King William "Conqueror" I of England
Great x 3 Grandmother: Isabelle Dampierre 5 x Great Grand Daughter of King William "Conqueror" I of England
Great x 4 Grandmother: Isabelle Luxemburg Countess Flanders 5 x Great Grand Daughter of King William "Conqueror" I of England
Mother: Jeanne Luxemburg Duchess Brabant 2 x Great Grand Daughter of King Edward "Longshanks" I of England
Great x 4 Grandfather: Thurstan de Holland
Great x 3 Grandfather: Robert de Holand of Upholland
Great x 2 Grandfather: Robert Holland 1st Baron Holand
Great x 1 Grandfather: Thomas Holland 1st Earl Kent 4 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandfather: Roger Zouche
6 x Great Grand Son of King Henry I "Beauclerc" England
Great x 3 Grandfather: Alan Zouche 1st Baron Zouche Ashby 2 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Ela Longespée Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 2 Grandmother: Maud Zouche Baroness Holand 3 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandfather: Nicholas Segrave 1st Baron Segrave
Great x 3 Grandmother: Eleanor Segrave
Great x 4 Grandmother: Maud de Lucy
GrandMother: Maud Holland Great Grand Daughter of King Edward "Longshanks" I of England
Great x 4 Grandfather: King Henry III of England Son of King John "Lackland" of England
Great x 3 Grandfather: King Edward "Longshanks" I of England Son of King Henry III of England
Great x 4 Grandmother: Eleanor of Provence Queen Consort England
Great x 2 Grandfather: Edmund of Woodstock 1st Earl Kent Son of King Edward "Longshanks" I of England
Great x 4 Grandfather: Philip "Bold" III King France 2 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 3 Grandmother: Margaret of France Queen Consort England 3 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Maria Reginar Queen Consort France 5 x Great Grand Daughter of King William "Conqueror" I of England
Great x 1 Grandmother: Joan "Fair Maid of Kent" Princess Wales Grand Daughter of King Edward "Longshanks" I of England
Great x 4 Grandfather: Baldwin Wake
Great x 3 Grandfather: John Wake 1st Baron Wake of Liddell 2 x Great Grand Son of King John "Lackland" of England
Great x 4 Grandmother: Hawise Quincy Great Grand Daughter of King John "Lackland" of England
Great x 2 Grandmother: Margaret Wake Countess Kent 3 x Great Grand Daughter of King John "Lackland" of England
Great x 4 Grandfather: William Fiennes
Great x 3 Grandmother: Joan Fiennes Baroness Wake Liddell 4 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Blanche Beaumont 3 x Great Grand Daughter of King Henry "Curtmantle" II of England