Biography of Peter Luxemburg I Count Saint Pol 1390-1433
Paternal Family Tree: Luxemburg
Around 1387 [his father] John Luxemburg Count St Pol (age 17) and [his mother] Margaret Brienne (age 22) were married. He the son of Guy of Luxemburg I Count Saint Pol and Ligny and Mathilde Chatillon Countess Saint Pol. He a great x 3 grandson of King Henry III of England. 
In 1390 Peter Luxemburg I Count Saint Pol was born to John Luxemburg Count St Pol (age 20) and Margaret Brienne (age 25).
In 1397 [his father] John Luxemburg Count St Pol (age 27) died.
On 08 May 1405 Peter Luxemburg I Count Saint Pol (age 15) and Margherita Baux (age 11) were married. He a great x 4 grandson of King Henry III of England. She a great x 5 granddaughter of King John "Lackland" of England. 
In 1410 [his son] Thibaud Luxemburg was born to Peter Luxemburg I Count Saint Pol (age 20) and [his wife] Margherita Baux (age 16).
In 1415 [his daughter] Jacquetta of Luxemburg Duchess Bedford was born to Peter Luxemburg I Count Saint Pol (age 25) and [his wife] Margherita Baux (age 21).
In 1418 [his son] Louis Luxemburg I Count Saint Pol was born to Peter Luxemburg I Count Saint Pol (age 28) and [his wife] Margherita Baux (age 24).
In 1430 Peter Luxemburg I Count Saint Pol (age 40) was created I Count Saint Pol.
Chronicle of Gregory 1433. 22 Apr 1433. And the same yere the [his son-in-law] Duke of Bedforde (age 43), and Regyant of Fraunce, weddyde the dukys (age 43)1 [his daughter] doughter (age 18) of Syn Powle the xxij2 day at Tyruyn [Map]3.
Note 1. He was Count Saint Pol rather than Duke.
Note 2. of April.
Note 3. Thérouanne [Map].
On 22 Apr 1433 [his son-in-law] John Duke Bedford (age 43) and [his daughter] Jacquetta Luxemburg (age 18) were married at Thérouanne [Map]. She by marriage Duchess Bedford. The difference in their ages was 25 years. She the daughter of Peter Luxemburg I Count Saint Pol (age 43) and Margherita Baux (age 39). He the son of King Henry IV of England and Mary Bohun. She a great x 5 granddaughter of King Henry III of England. 
The marriage caused a rift with Philip "Good" Duke Burgundy (age 36), John's late wife's brother, who regarded the marriage, some five months after his sister's death, an insult to her memory. There was no issue from the marriage with John dying a year and a half later.
On 31 Aug 1433 Peter Luxemburg I Count Saint Pol (age 43) died of plague at Rambures, Somme. His son [his son] Louis Luxemburg I Count Saint Pol (age 15) succeeded I Count Saint Pol.
Chronicle of Gregory 1433. 09 Nov 1433. Ande that same yere, the ix day of November, was the terement of the Erle of Syn Powle worthely i-holde at the chyrche of Syn Poulys [Map] in London.
Chronicle of Gregory 1459. 15 Jan 1460. But the Erle of Warwycke (age 31) come unto Sondewyche [Map], and there he toke the Lord Ryvers (age 55) with hys [his daughter] ladye (age 45), the lady and Duchyes of Bedfordeb and brought hem to Calys, for he was commaundyd to have londyd at C[a]lys by the kynge, but he was brought there sonner then hym lekyd.
Note b. Jaquetta (age 45), widow of the [his former son-in-law] Regent Bedford. She was the daughter of Peter of Luxemburg, Count of St. Pol, and soon after her first husband's death married Sir Richard Woodville (age 55), who was created Baron Rivers by Henry VI. in 1448, and Earl Rivers by Edward IV. (who was his son-in law) in 1466.
On 15 Nov 1469 [his former wife] Margherita Baux (age 75) died.
[his daughter] Isabelle Luxemburg Countess Maine was born to Peter Luxemburg I Count Saint Pol and Margherita Baux.
[his daughter] Catherine Luxemburg was born to Peter Luxemburg I Count Saint Pol and Margherita Baux.
[his son] Valeran Luxemburg was born to Peter Luxemburg I Count Saint Pol and Margherita Baux.
[his son] Jacques Luxemburg was born to Peter Luxemburg I Count Saint Pol and Margherita Baux.
[his son] Jean Luxemburg was born to Peter Luxemburg I Count Saint Pol and Margherita Baux.
Kings Wessex: Great x 11 Grand Son of King Edmund "Ironside" I of England
Kings England: Great x 4 Grand Son of King Henry III 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 8 Grand Son of Louis "Fat" VI King France
Great x 4 Grandfather: Henry "Great" Luxemburg V Count Luxemburg III Count Namur
Great x 3 Grandfather: Waleran I of Luxemburg 5 x Great Grand Son of King William "Conqueror" I of England
Great x 4 Grandmother: Margaret of Bar Countess Luxemburg and Namur 4 x Great Grand Daughter of King William "Conqueror" I of England
Great x 2 Grandfather: Waleran II of Luxemburg 6 x Great Grand Son of King William "Conqueror" I of England
Great x 3 Grandmother: Jeanne Dame Beaurevoir
Great x 1 Grandfather: John Luxemburg Lord of Ligby 7 x Great Grand Son of King William "Conqueror" I of England
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: Guy Dampierre Count Flanders
4 x Great Grand Son of King William "Conqueror" I of England
Great x 3 Grandfather: Guillaume Dampierre 5 x Great Grand Son of King William "Conqueror" I of England
Great x 4 Grandmother: Mathilde Bethune
Great x 2 Grandfather: Guy of Dampierre Richebourg 6 x Great Grand Son of King William "Conqueror" I of England
Great x 4 Grandfather: Raoul II de Clermont 4 x Great Grand Son of King Henry I "Beauclerc" England
Great x 3 Grandmother: Alix Clermont 5 x Great Grand Daughter of King Henry I "Beauclerc" England
Great x 4 Grandmother: Alix Capet I Viscountess Châteaudun
Great x 1 Grandmother: Alix Dampierre 7 x Great Grand Daughter of King William "Conqueror" I of England
Father: John Luxemburg Count St Pol 3 x Great Grand Son of King Henry III of England
Great x 4 Grandfather: Hugh Chatillon I Count Blois V Count Saint Pol
Great x 3 Grandfather: Guy Chatillon III Count Saint Pol 4 x Great Grand Son of King William "Conqueror" I of England
Great x 4 Grandmother: Mary Avesnes 3 x Great Grand Daughter of King William "Conqueror" I of England
Great x 2 Grandfather: Guy Chatillon IV Count Saint Pol 5 x Great Grand Son of King William "Conqueror" I of England
Great x 4 Grandfather: Henry Reginar II Duke Brabant 3 x Great Grand Son of King William "Conqueror" I of England
Great x 3 Grandmother: Matilda Reginar Countess Saint Pol 4 x Great Grand Daughter of King William "Conqueror" I of England
Great x 4 Grandmother: Marie Swabia Duchess Brabant
Great x 1 Grandfather: Jean Chatillon Count Saint Pol Great Grand Son of King Henry III of England
Great x 4 Grandfather: John "The Red" Capet I Duke Brittany 4 x Great Grand Son of King Henry I "Beauclerc" England
Great x 3 Grandfather: John Capet II Duke Brittany 5 x Great Grand Son of King William "Conqueror" I of England
Great x 4 Grandmother: Blanche "Navarre" Blois Duchess Brittany
4 x Great Grand Daughter of King William "Conqueror" I of England
Great x 2 Grandmother: Marie Capet Grand Daughter of King Henry III of England
Great x 4 Grandfather: King Henry III of England
Son of King John "Lackland" of England
Great x 3 Grandmother: Beatrice Plantagenet Daughter of King Henry III of England
Great x 4 Grandmother: Eleanor of Provence Queen Consort England
GrandMother: Mathilde Chatillon Countess Saint Pol 2 x Great Grand Daughter of King Henry III of England
Great x 4 Grandfather: Enguerrand Ingleram Fiennes
Great x 3 Grandfather: William Fiennes
Great x 4 Grandmother: Isabel Provence
Great x 2 Grandfather: Jean Fiennes 4 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandfather: John Beaumont
2 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 3 Grandmother: Blanche Beaumont 3 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Jeanne Chateaudun
Great x 1 Grandmother: Jeanne Fiennes 5 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandfather: William Dampierre II Count Flanders
Great x 3 Grandfather: Guy Dampierre Count Flanders 4 x Great Grand Son of King William "Conqueror" I of England
Great x 4 Grandmother: Margaret II Countess Flanders 3 x Great Grand Daughter of King William "Conqueror" I of England
Great x 2 Grandmother: Isabelle Dampierre 5 x Great Grand Daughter of King William "Conqueror" I of England
Great x 4 Grandfather: Henry "Great" Luxemburg V Count Luxemburg III Count Namur
Great x 3 Grandmother: Isabelle Luxemburg Countess Flanders 5 x Great Grand Daughter of King William "Conqueror" I of England
Great x 4 Grandmother: Margaret of Bar Countess Luxemburg and Namur 4 x Great Grand Daughter of King William "Conqueror" I of England
Peter Luxemburg I Count Saint Pol 4 x Great Grand Son of King Henry III of England
GrandFather: Louis Count of Enghien
Mother: Margaret Brienne