Family:
Bibliography
-
Richardson, Douglas, Royal Ancestry. Salt Lake City, Utah: Douglas Richardson, 2013. NYPL JFF 16-1184 v1-5 Information from this source tagged as [Ref: Richardson RoyalAnc v5p[0-9]*].
Sources for birth and parent Information
- parents:
- [Ref: Richardson RoyalAnc v5p421]
Research Notes:
Count of Saint Pol [Ref: Richardson RoyalAnc v5p421]
Seigneur of Bohain, Doullens, and Leceu [Ref: Richardson RoyalAnc v5p421]
Pedigree of Guy IV Count Of St. Pol
/-----
Henry I Seigneur De Chatillon
/-----
Gunthier II Seigneur De Chatillon-Sur-Masy, Pacy, Mo
| \-----
Ermengarde Heiress Of Montjoy
/-----
Guy II Seigneur De Chatillon, Toussy, Montjay,
| \-----
Ade Of Pierrefonds
/-----
Gaucher III Count Of St. Pol
| | /-----
Louis VI The Fat King Of France
| | /-----
Robert I Count Of Dreux
| | | \-----
Adelaide Of Savoy
| \-----
Adele/Alix Of Dreux
| | /-----
Walter De SALISBURY, Baron Of Chitterne
| \-----
Hawise De Evereux
| \-----
Sibyl De CHAWORTH
/-----
Hugh Of Chatillon, Count Of Blois
| | /-----
Hugh III Count Of St. Pol
| | /-----
Anselme CANDAVAINE, Count Of St. Pol
| | | \-----
Beatrix
| | /-----
Hughes IV Candavene Count Of St. Pol
| | | | /-----
Eustace Count Of Boulogne
| | | \-----
Eustache De CHAMPAGNE
| \-----
Elizabeth Countess Of St. Pol
| | /-----
Baldwin III Count Of Hainault
| | /-----
Baldwin IV Count Of Hainault
| | | \-----
Yolande Of Guelders
| \-----
Yolande Of Hainault
| | /-----
Godfrey Count Of Namur
| \-----
Alix De NAMUR
| \-----
Ermesinde
/-----
Guy II Of Chatilion, Count Of St. Pol
| | /-----
Walter I Lord Of Avesnes, Leuze, And Conde
| | /-----
Nicholas Lord Of Avesnes, Leuze, And Conde
| | | \-----
Ida Of Mortagne
| | /-----
Jacques I Seigneur Of Avesnes And Leuze
| | | | /-----
Henry Count Of LaRoche
| | | \-----
Mathilda
| | | \-----
Mathilda
| | /-----
Gaunthier Of Avesnes, Count Of Blois
| | | | /-----
Gui Seigneur De Guise
| | | | /-----
Bouchard Seigneur De Guise
| | | | | \-----
Adelaide
| | | \-----
Adelfia Heiress Of Guise
| | | \-----
Adelaide
| \-----
Mary Of Avesnes, Countess Of Blois
| | /-----
Stephen Count Of Blois, Leader Of First Crusade
| | /-----
Theobald IV Count Of Blois
| | | \-----
Adela
| | /-----
Theobald V Count Of Blois
| | | | /-----
Engelbert II Duke Of Corinthia, Margrave Of Istria
| | | \-----
Matilda Of Carinthia
| | | \-----
Uta Of Passau
| \-----
Margaret Countess Of Blois
| | /-----
Louis VI The Fat King Of France
| | /-----
Louis VII The Young King Of France
| | | \-----
Adelaide Of Savoy
| \-----
Alice
| | /-----
William VIII Count Of Poitou, Duke Of Aquitaine
| \-----
Eleanor Duchess Of Aquitaine
| \-----
Eleanor De CHASTELLERAULT
/-----
Guy III Of Chatilion, Count Of St. Pol
| | /-----
Godfrey I The Bearded Duke Of Brabant
| | /-----
Godfrey II Count Of Louvain
| | | \-----
Ida Of Chiny
| | /-----
Godfrey III Count Of Louvain
| | | | /-----
Berenger II Count Of Sultzbach
| | | \-----
Luitgarde Of Sultzbach
| | | \-----
Adelaide Wolfristrhausen
| | /-----
Henry I The Warrior Duke Of Brabant
| | | | /-----
Waleran II Duke Of Limburg
| | | | /-----
Henry II Count Of Limbourg
| | | | | \-----
Jutta Heiress Of Wassenberg
| | | \-----
Margaret Von LIMBOURG
| | | | /-----
Adolph Count Of Saffenberg
| | | \-----
Matilda Of Saffenberg
| | | \-----
Margaret Of Schwarzenberg
| | /-----
Henry II The Conqueror Duke Of Brabant
| | | | /-----
Thierry II Duke Of Lorraine
| | | | /-----
Thierry Of Lorraine, Count Of Flanders
| | | | | \-----
Gertrude Of Flanders
| | | | /-----
Matthew Of Alsace, Count Of Boulogne
| | | | | | /-----
Fulk V The Young Count Of Anjou, King Of Jerusalem
| | | | | \-----
Sybil Of Anjou
| | | | | \-----
Erembourg Of Maine
| | | \-----
Maud Of Boulogne
| | | | /-----
Stephen Count Of Blois, Leader Of First Crusade
| | | | /-----
Stephen Of Blois, King Of England
| | | | | \-----
Adela
| | | \-----
Mary Countess Of Mortagne And Boulogne
| | | | /-----
Eustace III Count Of Boulogne
| | | \-----
Matilda Of Boulogne
| | | \-----
Mary Of Scotland
| \-----
Matilda Of Brabant
| | /-----
Frederick I Of Hohenstauffen, Duke Of Alsace And Swa
| | /-----
Frederick II One-Eyed Of Hohenstauffen, Duke Of Swabia
| | | \-----
Agnes
| | /-----
Frederick III Barbarossa Duke Of Swabia, Emperor
| | | | /-----
Henry IX The Black Duke Of Bavaria
| | | \-----
Judith Of Bavaria
| | | \-----
Wulfhilda Of Saxony
| | /-----
Philip II Duke Of Swabia
| | | | /-----
Stephen Of Burgundy, Count Of Vienne
| | | | /-----
Renaud III Count Of Macon And Burgundy
| | | | | \-----
Beatrix
| | | \-----
Beatrix Of Macon, Countess Of Burgundy
| | | | /-----
Simon I Duke Of Lorraine Mosellana
| | | \-----
Agatha Of Lorraine
| | | \-----
Adelheid Of Lowen
| \-----
Marie Of Swabia
| | /-----
Constantinus Angelus
| | /-----
Andronicus Dukas Angelos
| | | \-----
Theodora Commena
| | /-----
Isaac II Angelus, Eastern Roman Emperor
| | | \-----
Euphrosyne Castamonita
| \-----
Irene Angelica
| \-----
Irene
/-----
Jean Count Of St. Pol
| | /-----
Louis VI The Fat King Of France
| | /-----
Robert I Count Of Dreux
| | | \-----
Adelaide Of Savoy
| | /-----
Robert II Count Of Dreux
| | | | /-----
Gui Seigneur De Baudmont And Braine
| | | \-----
Agnes De Baudemont
| | | \-----
Adelaide
| | /-----
Pierre De DREUX, Count Of Brittany
| | | | /-----
Enguerrand II Sire De COUCY
| | | | /-----
Ralph I Sire De COUCY
| | | | | \-----
Agnes De BAUGENCI
| | | \-----
Yolande De COUCY
| | | | /-----
Baldwin IV Count Of Hainault
| | | \-----
Agnes Of Hainault
| | | \-----
Alix De NAMUR
| | /-----
John Le Roux De BRETAGNE, Duke Of Brittany
| | | | /-----
Aimery VI Vicount Of Thouars
| | | | /-----
Geoffrey V Vicount Of Thouars
| | | | | \-----
Maud/Agnes Of Aquitaine
| | | | /-----
Gui De THOUARS, Count Of Brittany
| | | | | | /-----
Hugh VII Brunus Sire De Lusignan
| | | | | \-----
Aimee/Aenor De Lusignan
| | | | | \-----
Sarasine
| | | \-----
Alix De THOUARS, Duchess Of Brittany
| | | | /-----
Alan The Black Earl Of Richmond
| | | | /-----
Conan IV Le Petit Duke Of Brittany
| | | | | \-----
Bertha Of Brittany
| | | \-----
Constance Countess Of Brittany
| | | | /-----
Henry Of Huntingdon, Earl Of Huntingdon
| | | \-----
Margaret Of Huntingdon
| | | \-----
Ada De WARENNE
| | /-----
John De BRETAGNE, Duke Of Brittany
| | | | /-----
Theobald IV Count Of Blois
| | | | /-----
Henry I Count Of Champagne
| | | | | \-----
Matilda Of Carinthia
| | | | /-----
Theobald III Count Of Champagne
| | | | | | /-----
Louis VII The Young King Of France
| | | | | \-----
Mary
| | | | | \-----
Eleanor Duchess Of Aquitaine
| | | | /-----
Theobald I King Of Navarre
| | | | | | /-----
Garcia V King Of Navarre
| | | | | | /-----
Sancho VI King Of Navarre
| | | | | | | \-----
Marguerite Of Perche
| | | | | \-----
Blanche Of Navarre
| | | | | | /-----
Alfonso VII King Of Castile And Leon
| | | | | \-----
Sancha Of Castile
| | | | | \-----
Berenguela Of Barcelona
| | | \-----
Blanche Of Navarre
| | | | /-----
Humbert III Of Beaujeu
| | | | /-----
Humbert IV Of Beaujeu
| | | | | \-----
Alix/Elsa Of Savoy
| | | | /-----
Guichard IV The Great Sire De Beaujeu
| | | | | | /-----
Guy Lord Of Montpensier
| | | | | \-----
Agnes Of Thiern
| | | \-----
Agnes De Beaujeu
| | | | /-----
Baldwin IV Count Of Hainault
| | | | /-----
Baldwin V Count Of Hainaut And Namur
| | | | | \-----
Alix De NAMUR
| | | \-----
Sibylle Of Flanders
| | | | /-----
Thierry Of Lorraine, Count Of Flanders
| | | \-----
Margarite Of Lorraine, Heiress Of Flanders
| | | \-----
Sybil Of Anjou
| \-----
Marie Of Brittany
| | /-----
Fulk V The Young Count Of Anjou, King Of Jerusalem
| | /-----
Geoffrey Plantagenet Count Of Anjou, Duke Of Normandy
| | | \-----
Erembourg Of Maine
| | /-----
Henry II Curt Mantel PLANTAGENET, King Of England
| | | | /-----
Henry I Beauclerc King Of England
| | | \-----
Matilda
| | | \-----
Matilda Of Scotland
| | /-----
John Lackland PLANTAGENET, King Of England
| | | | /-----
William VII Count Of Poitou, IX Duke Of Aquitain
| | | | /-----
William VIII Count Of Poitou, Duke Of Aquitaine
| | | | | \-----
Maud Of Toulouse
| | | \-----
Eleanor Duchess Of Aquitaine
| | | | /-----
Aimery I Vicount De Chatellerault
| | | \-----
Eleanor De CHASTELLERAULT
| | | \-----
Dangerose
| | /-----
Henry III King Of England
| | | | /-----
Wulgrim II Tailefer, Count Of Angouleme
| | | | /-----
William Guillaume IV Tailefer, Count Of Angouleme
| | | | | \-----
Ponse De Montgomery
| | | | /-----
Aymer Tailefer, Count Of Angouleme
| | | | | | /-----
Raymond I Vicount Of Turenne
| | | | | \-----
Marguerite De Turenne
| | | | | \-----
Maude De Perche
| | | \-----
Isabel Of Angouleme
| | | | /-----
Louis VI The Fat King Of France
| | | | /-----
Peter Of France, Lord Of Courteney
| | | | | \-----
Adelaide Of Savoy
| | | \-----
Alice De Courtenay
| | | | /-----
Renaud De Courtenay, Seigneur De Courtenay
| | | \-----
Elizabeth De Courtenay
| | | \-----
Hedwig Du DONJON
| \-----
Beatrice
| | /-----
Raymond Berenger IV Count Of Barcelona
| | /-----
Alfonso II King Of Aragon
| | | \-----
Petronilla Queen Of Aragon
| | /-----
Alfonso II Count Of Provence
| | | | /-----
Alfonso VII King Of Castile And Leon
| | | \-----
Sancha Of Castile
| | | \-----
Richilde Of Poland
| | /-----
Raymond Berengar IV Count Of Provence And Forcalquier
| | | | /-----
Rostaing II De Sabran
| | | | /-----
Rainou Seigneur De Castellar, Count Of Forcalqu
| | | | | \-----
Roscie Of Uzes
| | | \-----
Gersenda II Of Sabran
| | | | /-----
William II Count Of Forcalquier
| | | \-----
Gersinde Of Forcalquier
| | | \-----
Adelaida De Bezieres
| \-----
Eleanor Of Provence
| | /-----
Amadeus III Count Of Savoy, Marquess Of Turin
| | /-----
Humbert III Count Of Savoy
| | | \-----
Matilda Of Grenoble
| | /-----
Thomas I Count Of Savoy
| | | | /-----
Gerard I Count Of Vienne And Macon
| | | \-----
Beatrix Of Macon
| | | \-----
Maurette Of Salines
| \-----
Beatrice Of Savoy
| | /-----
Amadeus Count Of Geneva
| | /-----
William I Count Of Geneva
| | | \-----
Matilda
| \-----
Margaret Of Geneva
| | /-----
Aimon I Sire Of Faucigny
| \-----
Beatrix De FAUCIGNY
| \-----
Clementia
Guy IV Count Of St. Pol
| /-----
Conan Fitz EUSTACHE
| /-----
Eustace II De FIENNES, Baron Fiennes
| | \-----
Gila
| /-----
Ingleman De FIENNES
| | | /-----
Arnold Of Gent, Count Of Guines
| | \-----
Margaret Of Guines
| | \-----
Mahaut De SAINT OMER
| /-----
William De FIENNES
| | | /-----
William De BOULOGNE
| | | /-----
Faramus De BOULOGNE
| | | | \-----
(Unk1)
| | \-----
Sybilla De BOULOGNE
| | \-----
Matilda
| /-----
Sir Ingleman FIENNES, K.B., Lord Of Wendover
| | | /-----
Odo De DAMMARTIN
| | | /-----
Alberic I De DAMMARTIN
| | | | \-----
Basilia De St CLAIR
| | | /-----
Alberic II De DAMMARTIN, Count Of Dammartin
| | | | \-----
(Unk)
| | \-----
Agnes De DAMMARTIN
| | | /-----
Hugh Count Of Clermont
| | | /-----
Renaud Count Of Clermont
| | | | \-----
Margaret De Roucy
| | \-----
Maud Of Clermont
| | | /-----
Renaud I Count Of Bar
| | \-----
Clemence Of Bar-Le-Duc
| | \-----
Gisele De VAUDEMONT
| /-----
Sir William FIENNES
| | | /-----
Roger Lord Of Conde-En-Partie
| | | /-----
Nicolas Lord Of Balliol
| | | | | /-----
Gessuin II Of Mons
| | | | | /-----
Gessuin III Of Mons
| | | | | | \-----
Ida Of Ath
| | | | \-----
Alix Of Mons
| | | | | /-----
Nicolas II Of Rumigny
| | | | \-----
Beatrix Of Rumigny
| | | | \-----
Aelidis Of Hainault
| | \-----
Isabel Of Conde
| | | /-----
Arnoul IV Lord Of Morialme
| | \-----
Elisabeth Of Morialme
| /-----
Sir Jean FIENNES
| | | /-----
Erard I Count Of Brienne
| | | /-----
Walter II Count Of Brienne
| | | | \-----
Alix Of Rameru
| | | /-----
Erard II Count Of Brienne
| | | | \-----
(Unk) Of Soissons
| | | /-----
Jean De BRIENNE, King Of Jerusalem
| | | | | /-----
Richard II Of Montfaucon
| | | | | /-----
Amadeus Of Montfaucon, Count Of Montbeliard
| | | | | | \-----
Sophia Of Montbeliard
| | | | \-----
Agnes De MONTFAUCON
| | | | | /-----
Roger Of Joinville
| | | | \-----
Beatrice Of Joinville
| | | | \-----
Audiarde Of Vignory
| | | /-----
Jean De BRIENNE, Grand Butler Of France
| | | | | /-----
Alfonso VII King Of Castile And Leon
| | | | | /-----
Fernando II King Of Leon
| | | | | | \-----
Berenguela Of Barcelona
| | | | | /-----
Alfonso IX King Of Leon
| | | | | | | /-----
Alfonso Henriques I King Of Portugal
| | | | | | \-----
Urraca Of Portugal
| | | | | | \-----
Maud Of Savoy
| | | | \-----
Berengaria Of Leon
| | | | | /-----
Sancho III King Of Castile
| | | | | /-----
Alfonso VIII The Good King Of Castile
| | | | | | \-----
Blanche Of Navarre
| | | | \-----
Berengaria Of Castile
| | | | | /-----
Henry II Curt Mantel PLANTAGENET, King Of England
| | | | \-----
Eleanor Of England
| | | | \-----
Eleanor Duchess Of Aquitaine
| | \-----
Blanche De BRIENNE, Lady Of Loupeland
| | | /-----
Hughs IV Vicount Of Chateaudun
| | | /-----
Hugh V Vicount Of Chateaudun
| | | | \-----
Marguerite De Saint Calais
| | | /-----
Geoffroy V Vicount Of Chateaudun
| | | | | /-----
Gauzbert De Preuilly, Seigneur De Bouchet
| | | | \-----
Jeanne De Preuilly, Dame De Bouchet
| | | | \-----
Adelaide De Vendome
| | | /-----
Geoffrey VI Vicomte De Chateaudun
| | | | \-----
Adele Of Nevers
| | \-----
Jeanne Dame De Chateau Du Loir
| | | /-----
Baldwin Of Roches, Seigneur of Chateau-du-Loir
| | | /-----
William Of Roches, Seneschall Of Anjou
| | | | \-----
Alix of Chatellerault
| | \-----
Clemence Of Roches
| | | /-----
Robert Of Sable
| | | /-----
Robert Sire Of Sable
| | | | \-----
Hersende De ANTHENAISE
| | \-----
Marguerite Dame Of Sable
| | | /-----
Geoffroy Sire De Mayenne
| | \-----
Clemence Of Mayenne
| | \-----
Isabella De BEAUMONT
\-----
Jeanne De Fiennes
| /-----
Thibaud Seigneur De Dampierre
| /-----
Gui I Seigneur De Dampierre, Vicomte Of Troyes
| | \-----
Isabel
| /-----
William Seigneur De Dampierre, Constable Of Cham
| | | /-----
Andre Seigneur De Baudmont
| | \-----
Helvide Of Baudemont
| | \-----
Agnes Heiress Of Braine
| /-----
Guy II Seigneur De Dampierre
| | | /-----
Dreux III Seigneur De Morichy
| | | /-----
Dreux IV Seigneur De Morichy
| | | | \-----
Edith De WARENNE
| | \-----
Ermengarde
| | | /-----
Lancelin II Of Beauvais
| | \-----
Basilie
| | \-----
Adele De Bulles
| /-----
William Seigneur De Dampierre
| | | /-----
Aymon II Vaire-Vache Sire De Bourbon
| | | /-----
Archambaud VII The Strong Seigneur De Bourbon
| | | | \-----
Aldesinde Of Nevers
| | | /-----
Archambaud VIII The Young Seigneur De Bourbon
| | | | | /-----
Humbert II Count Of Maurienne And Savoy
| | | | \-----
Agnes Of Savoy
| | | | \-----
Gisele Of Burgundy
| | \-----
Matilda De BOURBON, Dame De Bourbon
| | | /-----
Hugh II Duke Of Burgundy
| | | /-----
Eudes II Duke Of Burgundy
| | | | \-----
Mechtild Of Mayenne
| | \-----
Alice Of Burgundy
| | | /-----
Theobald IV Count Of Blois
| | \-----
Mary Of Blois
| | \-----
Matilda Of Carinthia
| /-----
Guy De Dampierre Count Of Flanders
| | | /-----
Baldwin III Count Of Hainault
| | | /-----
Baldwin IV Count Of Hainault
| | | | \-----
Yolande Of Guelders
| | | /-----
Baldwin V Count Of Hainaut And Namur
| | | | | /-----
Godfrey Count Of Namur
| | | | \-----
Alix De NAMUR
| | | | \-----
Ermesinde
| | | /-----
Baldwin IX Eastern Emperor
| | | | | /-----
Thierry II Duke Of Lorraine
| | | | | /-----
Thierry Of Lorraine, Count Of Flanders
| | | | | | \-----
Gertrude Of Flanders
| | | | \-----
Margarite Of Lorraine, Heiress Of Flanders
| | | | | /-----
Fulk V The Young Count Of Anjou, King Of Jerusalem
| | | | \-----
Sybil Of Anjou
| | | | \-----
Erembourg Of Maine
| | \-----
Margaret Of Flanders
| | | /-----
Stephen Count Of Blois, Leader Of First Crusade
| | | /-----
Theobald IV Count Of Blois
| | | | \-----
Adela
| | | /-----
Henry I Count Of Champagne
| | | | | /-----
Engelbert II Duke Of Corinthia, Margrave Of Istria
| | | | \-----
Matilda Of Carinthia
| | | | \-----
Uta Of Passau
| | \-----
Mary Of Champagne
| | | /-----
Louis VI The Fat King Of France
| | | /-----
Louis VII The Young King Of France
| | | | \-----
Adelaide Of Savoy
| | \-----
Mary
| | | /-----
William VIII Count Of Poitou, Duke Of Aquitaine
| | \-----
Eleanor Duchess Of Aquitaine
| | \-----
Eleanor De CHASTELLERAULT
\-----
Isabelle De Dampierre
| /-----
Waleran II Duke Of Limburg
| /-----
Henry II Count Of Limbourg
| | \-----
Jutta Heiress Of Wassenberg
| /-----
Henry III Duke Of Limburg
| | | /-----
Adolph Count Of Saffenberg
| | \-----
Matilda Of Saffenberg
| | \-----
Margaret Of Schwarzenberg
| /-----
Waleran IV Duke Of Limburg
| | | /-----
Frederick Count Of Saarbrucken
| | | /-----
Simon I Count Of Saarbrucken
| | | | \-----
Gisela
| | \-----
Sophia
| | | /-----
Meginhard I Count Of Spondheim
| | \-----
Mathilda Of Spondheim
| | \-----
Machthild Of Morsburg
| /-----
Henry II The Blond Count Of Luxembourg And La Roche
| | | /-----
Albert III Count Of Namur
| | | /-----
Godfrey Count Of Namur
| | | | \-----
Ida Of Saxony
| | | /-----
Henry The Blind Count Of Namur And Luxembourg
| | | | | /-----
Conrad I Count Of Luxembourg
| | | | \-----
Ermesinde
| | | | \-----
Clementia Of Poitou
| | \-----
Ermensende Of Namur
| | | /-----
Gerard II Count Of Zutphen
| | | /-----
Henry Count Of Guelders
| | | | \-----
Ermengarde Heiress Of Zutphen
| | \-----
Agnes Of Gelders
| | | /-----
Ludwig II Count Of Arnstein
| | \-----
Agnes Of Arnstein
| | \-----
Udalhild Of Odenkirchen
\-----
Isabel Of Luxemburg
| /-----
Renaud I Count Of Bar
| /-----
Renaud II Count Of Bar, Seigneur De Ligny
| | \-----
Gisele De VAUDEMONT
| /-----
Thibaud I Count Of Bar, Seigneur De Ligny
| | | /-----
Theobald IV Count Of Blois
| | \-----
Agnes Of Champagne, Heiress Of Ligny
| | \-----
Matilda Of Carinthia
| /-----
Henry II Count Of Bar, Seigneur De Ligny
| | | /-----
Milon II Count Of Bar-Sur-Seine
| | | /-----
Guy Count Of Bar-Sur-Seine
| | | | \-----
Mathilda Of Noyers
| | \-----
Ermensinde Of Bar-Sur-Seine
| | | /-----
Anseric II Lord Of Chacenay
| | \-----
Petronilla Of Chacenay
| | \-----
Humbeline Of Troyes
\-----
Margaret Of Bar
| /-----
Louis VI The Fat King Of France
| /-----
Robert I Count Of Dreux
| | \-----
Adelaide Of Savoy
| /-----
Robert II Count Of Dreux
| | | /-----
Gui Seigneur De Baudmont And Braine
| | \-----
Agnes De Baudemont
| | \-----
Adelaide
\-----
Phillippe Of Dreux
| /-----
Enguerrand II Sire De COUCY
| /-----
Ralph I Sire De COUCY
| | \-----
Agnes De BAUGENCI
\-----
Yolande De COUCY
| /-----
Baldwin IV Count Of Hainault
\-----
Agnes Of Hainault
\-----
Alix De NAMUR
Descendants of Guy IV Count Of St. Pol