Descendants of
Pierre I de France
(4 generations)
 

       Pierre I de France
       Sire de Courtenay
       Born circa 1126
       Died circa 1180 /1183
       Married after 1150
       Elisabeth de Courtenay, daughter of Renaud de Courtenay, of
       Sutton, Berk. and Hawise (Elisabeth) de Donjon
       Died after 14 September 1205
                 Children, Generation I

       Generation I 
            1  Pierre II de Courtenay
               Emperor of Constantinople
               Born circa 1155
               Died before  January 1218
               Married (1) 1184
               AgnŠs de Nevers, daughter of Gui I, Comte de Nevers et de
               Tonnerre and Mahaud de Bourgogne, Comtesse de Grignon, Dame
               de Vitteaux
               Died 1192
               Married (2) June 1193
               Yolande of Flanders, daughter of Baudouin V-VIII, Count of
               Flanders & Hainault and Margarethe of Flanders
               Died August 1219
                         Children, Generation II-1

            2  NN de Courtenay
               Born circa 1158
               Married (Eudes) de La Marche

            3  Alice de Courtenay
               Born circa 1160
               Died 1218
               Married (1) circa 1178 Div.1186
               Guillaume I, Comte de Joigny, son of Renard, Comte de
               Joigny and Adele de Nevers
               Died 1221
               Married (2) circa 1186
               Adhemar, Comte d'Angouleme, son of Guillaume VI Taillefer,
               Comte d'Angouleme and Marguerite de Turenne
               Died 16 June 1202 Limoges

            4  Eustachie de Courtenay
               Dame de Placy-sur-Armacon
               Died after 1248
               Married (1) Guillaume de Brienne, son of Erard II, Comte de
               Brienne and Agnes de Montfaucon
               Died before 1200
               Married (2) 1200
               Guillaume de Champlitte, Vicomte de Dijon, Prince of
               Achaja, son of Eudes I, Seigneur de Champlitte and Sibille
               de La Ferte-sur-l'Aube
               Died 1208 - 1209 Apulia
               Married (3) May 1210
               Guillaume I, Comte de Sancerre, son of Etienne I de
               Champagne, Comte de Sancerre and Ermesinde de Donzy
               Died 1217

            5  Clemence de Courtenay
               Married before 1185
               Vicomte Guy VI de Thiern

            6  Robert I de Courtenay
               Seigneur de Champignelles, de Chateaurenard
               Born circa 1168
               Died 1239 The Holy Land
               Married (1) circa 1200
               Constance (de Toucy)
               Married (2) 1216 / 10 December 1218
               Mahaut de Mehun, Dame de Mehun-sur-Yevre, daughter of
               Philippe de Mehun
               Died 1240
               Buried Mehun
                         Children, Generation II-2

            7  Philippe de Courtenay
               mentioned 1183

            8  Guillaume de Courtenay
               Sire de Tanlay, de Mailly-le-Chateau
               Born circa 1172
               Died circa  April 1233 /1248
               Buried Abbey de Quincy
               Married (1) circa 1204
               Adeline de Noyers, Dame de Tanlay, daughter of Clerembaud,
               Sire de Noyers and Ada de Pleurs
               Born circa 1186
               Died circa 1222 /1229
               Married (2) circa 1229 /1231
               Nicole
               Died after 1231
                         S.P.

            9  Constance de Courtenay
               Dame de Chateaufort
               Died after 1231
               Married (1) Gasce de Poissy, Seigneur de Chateaufort
               Died 14 August 1189
               Married (2) Guillaume de Breteuil, Seigneur de La
               Ferte-Arnaud et de Villepreux
               Died before 1231

            10 Isabelle de Courtenay
               mentioned 1194
               Married Aimon III de Charros
               Died after 1221

       II-1 (I-1)
        (1) 1  Mahaut de Courtenay
               Comtesse de Nevers
               Born circa 1188
               Died after 12 December 1254
               Married (1) October 1199
               Herve IV de Donzy, Sire de Donzy, son of Herve III, Sire de
               Donzy and Mathilde/Mabille Goet
               Died 22 January 1223 (poisoned)
               Married (2) 1226
               Guy IV, Comte de Forez, Comte de Nevers, son of Guy III
               d'Albon, Comte de Forez and Adalasia
               Died 29 October 1241 Castellaneta

        (2) 2  Marguerite de Courtenay
               Died 17 July 1270
               Married (2) before 1217
               Heinrich I, Graf von Vianden, son of Friedrich III, Graf
               von Vianden and Mechtild von der Neuerburg
               Died circa 19 November 1253

            3  Elisabeth de Courtenay
               Born circa 1199
               Died after 1269
               Married (1) Gaucher de Bar-sur-Seine
               Died 1219
               Married (2) 1220
               Eudes I de Montagu, Seigneur de Montagu, de Chagny, de
               Gergy, son of Alexandre de Bourgogne, Seigneur de Montagu
               and Beatrix de Rion, Dame de Gergy
               Born circa 1196
               Died 1243 / 1247

            4  Yolande de Courtenay
               Died 1233
               Married 1215
               Andras II, King of Hungary 1205-1235, son of Bela III, King
               of Hungary 1173-1196 and Agnes de Chatillon
               Born 1176
               Died 26 October 1235

            5  Agnes de Courtenay
               Died after 1247
               Married 1217
               Geoffrey II de Villehardouin
               Died 1245

            6  Marie de Courtenay
               Born 1204
               Died September 1222
               Married 1219
               Theodoros I Komnenos Laskaris, Emperor of Nicaa 1204-1222,
               son of Manuel Laskaris and Ioanna (Karatzas, Phokaina)
               Born circa 1175
               Died August 1222
                         S.P.

            7  Eleonore de Courtenay
               Died before 1230
               Married Philippe I de Montfort, Seigneur de Castres, son of
               Guy de Montfort, Seigneur de La Ferte-Alais and Helvis
               Ibelin
               Died 17 March 1270 (murdered)

            8  Constance de Courtenay
               mentioned 1210

            9  Sybille de Courtenay
               Born 1197
               Died 1210

            10 Philippe II de Courtenay
               Comte de Namur
               Died 1226

            11 Pierre de Courtenay
               mentioned 1210

            12 Robert I de Courtenay
               Emperor of Constantinopel
               Died 1228

            13 Henri de Courtenay
               Comte de Namur
               Died 1229

            14 Baudouin II de Courtenay
               Emperor of Constantinopel
               Born 1218
               Died after 15 October 1273
               Married 19 April 1229 * Perugia
               Marie de Brienne, daughter of Jean de Brienne, King of
               Jerusalem and Berengaria of Leon & Castile
               Died after 5 May 1275
               Buried Assisi, Italy
                         Children, Generation III-1

       II-2 (I-6)
        (2) 1  Blanche de Courtenay
               Dame de Bleneau et de Malicorne
               Born circa 1217
               Died 1231 (1250 ?)
               Married circa 1220
               Louis I, Comte de Sancerre, son of Guillaume I, Comte de
               Sancerre and Denise de D‚ols, Dame de Deols et Chateauroux
               Died 1268

            2  Pierre I de Courtenay
               Seigneur de Conches, de Mehun-sur-Yevre
               Born circa 1218
               Died 8 February 1250 Mansourah
               Married June 1249
               Perenelle de Joigny, Dame de Chateaurenard et d'Amilly,
               daughter of Gaucher de Joigny, Seigneur de Chateaurenard
               and Amicie de Montfort
               Died 1282
                         Children, Generation III-2

            3  Isabeau de Courtenay
               Born circa 1219
               Died 22 September 1257
               Married (1) after 1224
               Renaud II de Montfaucon
               Died circa 1240
               Married (2) 1242 / 1243
               Jean "l'Antique" de Chalon, Comte de Bourgogne, d'Auxonne
               et de Chalon, son of Etienne III de Bourgogne, Comte
               d'Auxonne and Beatrix , Comtesse de Chalon
               Born 1190
               Died 30 September 1267

            4  Raoul de Courtenay
               Seigneur d'Illiers-en-Auxerrois
               Born circa 1223
               Died 1271 Napoli
               Married circa 1247
               Alix de Montfort, Comtesse de Bigorre, daughter of Guy de
               Montfort and Petronille de Comminges, Comtesse de Bigorre,
               Vicomtesse de Marsan
               Died 1255
               Buried Montargis
                         Children, Generation III-3

      III-1 (II-1-14)
            1  Philippe de Courtenay
               titular Emperor of Constantinopel
               Born 1243
               Died 1283
               Married 15 October 1273
               Beatrice d'Anjou, daughter of Charles I Etienne, King of
               Naples and Sicily 1265-1285 and Beatrice de Provence
               Died 1275
                         Children, Generation IV-1

      III-2 (II-2-2)
            1  Amicie de Courtenay
               Heiress of Conches, Mehun-sur-Yevre
               Born circa 1250
               Died 1275 Rome
               Buried Rome, St.Peter
               Married 1262
               Robert II, Comte d'Artois, son of Robert I, Comte d'Artois
               and Mathilde of Brabant
               Born after  August 1250
               Died 11 July 1302 Kortrijk (in battle)
               Buried Abbey de Maubuisson

      III-3 (II-2-4)
            1  Mahaut de Courtenay
               Comtesse de Chieti
               Born circa 1254
               Died 1303 in Italy
               Married 1284
               Philippe de Dampierre, Conte di Teano
               Died 1318

       IV-1 (III-1-1)
            1  Catherine de Courtenay
               Died 3 January 1307
               Married 8 February 1301
               Charles, Comte de Valois, son of Philippe III "le Hardi",
               King of France 1270-1285 and Isabelle of Aragon
               Born 12 March 1270 Carenne
               Died 16 December 1325 Le Perray, nr.Rambouillet

                                   Source Listing 
                                    --------------

           Stammtafeln zur Geschichte der
           Europaeischen Staaten, 4 volumes,
           Marburg, 1953, 1975. 
                            by W.K. Prinz von Isenburg

           Encyclopedie Genealogique des Maisons
           Souveraines du Monde
           Paris, VIII 1963,IX 1964,XII 1966.
                             by Docteur Gaston Sirjean

           Europaeische Stammtafeln,
           J.A. Stargardt Verlag
           Marburg.
                         by Detlev Schwennicke, Editor