Nielsen Hayden genealogy
Descendants of Peter II of Courtenay, Emperor of Constantinople
Abt 1155 - Bef 1218 (~ 62 years)Father: Pierre of France (Abt 1121 - Between 1180 and 1183 Palestine)
Mother: Elisabeth de Courtenay ( - Aft 1205)
Peter II of Courtenay, Emperor of Constantinople (Abt 1155 - Bef Jan 1218)
Agnes de Nevers ( - 1192)(m. 1184)
:   └─ Mahaut de Courtenay (Abt 1188 - 29 Jul 1257)
:    Hervé IV de Donzy (Abt 1173 - 22 Jan 1223)(m. Oct 1199)
:       └─ Agnès de Donzy ( - 1225)
:        Guy de Châtillon ( - Aug 1226 Avignon, Vaucluse, France)(m. Bef 15 Nov 1223)
:            + Archambaud IX de Dampierre (1205 - 15 Jan 1249 Cyprus)
Yolanda of Flanders (Abt 1175 - Aug 1219)(m. Jun 1193)
   └─ Yolanda of Courtenay, Queen Consort of Hungary (Abt 1200 - 1233)
    András II, King of Hungary (1176 - 21 Sep 1235)
       └─ Violant of Hungary ( - 12 Oct 1251 bur.Cistercian Monastery of Vallbona, Catalonia, Spain)
        James I, King of Aragón (2 Feb 1208 Montpellier, Hérault, France - 27 Jul 1276 Alzira, Valencia, Spain)
        (m. 8 Sep 1236 Barcelona, Catalonia, Spain)
        (m. 8 Sep 1236 Barcelona, Catalonia, Spain)
           ├─ Yolande of Aragón (Bef Jan 1238 - 1301 Roncevalles, Navarre, Spain) =>
           │ + Alfonso X, King of Castile and León (21 Nov 1221 Toledo, Toledo, Castilla-La Mancha, Spain -
           │ 4 Apr 1284 Seville, Andalusia, Spain)(m. 26 Nov 1248 Valladolid, Castile, Spain)
           │ 4 Apr 1284 Seville, Andalusia, Spain)(m. 26 Nov 1248 Valladolid, Castile, Spain)
           ├─ Pedro III, King Of Aragón; King Of Sicily (Jul 1240 - 11 Nov 1285) =>
           │ + Constance of Sicily (1249 - 1301 Barcelona, Catalonia, Spain)
           │ (m. 13 Jun 1262 Montpellier, Hérault, France)
           │ (m. 13 Jun 1262 Montpellier, Hérault, France)
           └─ Isabella of Aragon, Queen Consort of France (Between 1243 and 1247 -
            28 Jan 1271 Cosenza, Calabria, Italy) =>
            28 Jan 1271 Cosenza, Calabria, Italy) =>
            + Philippe III, King of France (1 May 1245 Poissy, Yvelines, Île-de-France, France - 5 Oct 1285
            Perpignan, Pyrénées-Or, France)(m. 28 May 1262 Clermont-Ferrand, Auvergne-Rhône-Alpes, France)
           
            Perpignan, Pyrénées-Or, France)(m. 28 May 1262 Clermont-Ferrand, Auvergne-Rhône-Alpes, France)