Nielsen Hayden genealogy
Descendants of Isaac II Angelos, Emperor of Byzantium
1156 - 1204 (~ 47 years)Father: Andronikos Doukas Angelos (Abt 1122 - Aft 1185)
Mother: Euphrosyne Kastamonitissa (Abt 1125 - Aft 1195)
Isaac II Angelos, Emperor of Byzantium (Constantinople;Sep 1156 - Jan 1204)
(First wife of Isaac II Angelos) ( - Bef 1185)
:   └─ Irene Angelina (Abt 1181 Constantinople - 27 Aug 1208 Hohenstaufen Castle, Bavaria)
:    Philip II, King of Germany (1177 - 21 Jun 1208 Bamberg, Bayern, Germany)(m. 25 May 1197)
:       ├─ Maria von Hohenstaufen (Abt 1201 - 1235)
:       │ Henri II of Brabant (1207 - 1 Feb 1248)(m. 22 Aug 1215)
:       │    ├─ Mahaut of Brabant (Abt 1224 - 29 Sep 1288 bur.Cercamp Abbey, Artois, France) =>
:       │    │ + Robert of France (17 Sep 1216 - 9 Feb 1250 Mansourah, Egypt)(m. 14 Jun 1237)
:       │    │ + Guy II de Châtillon (Abt 1230 - 12 Mar 1289)(m. Abt 31 May 1254)
:       │    └─ Henri III of Brabant (Abt 1230 - 28 Feb 1261 Leuven, Vlaams-Brabant, Belgium) =>
:       │     + Alix of Burgundy (Abt 1233 -
:       │     23 Oct 1273 bur.Church of the Dominicans, Leuven, Vlaams-Brabant, Belgium)(m. 1251)
:       │     23 Oct 1273 bur.Church of the Dominicans, Leuven, Vlaams-Brabant, Belgium)(m. 1251)
:       ├─ Kunigunde von Hohenstaufen (Between Jan 1202 and Mar 1202 - 13 Sep 1248 bur.St. Veit, Prague, Bohemia)
:       │ Wenceslas I, King of Bohemia (1205 - 22 Sep 1253)(m. 1224)
:       │    │ + Otto III of Brandenburg (Abt 1215 - 9 Oct 1267)(m. Jan 1243)
:       │    └─ Przemysl Ottokar II, King of Bohemia (Abt 1230 - 26 Aug 1278) =>
:       │     + Kunhata of Slavonia and Machva (Abt 1245 - 9 Sep 1285)(m. 25 Oct 1261 Bratislava, Slovakia)
:       └─ Elizabeth von Hohenstaufen (Between Mar 1205 and May 1205 - 30 Nov 1235)
:        St. Fernando III, King Of Castile, León, Galicia, Toledo, Córdoba, Jaén, and Seville (Between Jun 1201
:        and Jul 1201 En route between Salamanca and Zamora -
:        30 May 1252 Seville, Andalusia, Spain)(m. 30 Nov 1219 Burgos, Castile, Spain)
:        and Jul 1201 En route between Salamanca and Zamora -
:        30 May 1252 Seville, Andalusia, Spain)(m. 30 Nov 1219 Burgos, Castile, Spain)
:           └─ Alfonso X, King of Castile and León (21 Nov 1221 Toledo, Toledo, Castilla-La Mancha, Spain -
:            4 Apr 1284 Seville, Andalusia, Spain) =>
:            4 Apr 1284 Seville, Andalusia, Spain) =>
:            + Maria Guillen de Guzmán ( - 1262)
:            + Yolande of Aragón (Bef Jan 1238 - 1301 Roncevalles, Navarre, Spain)
:            (m. 26 Nov 1248 Valladolid, Castile, Spain)
:            (m. 26 Nov 1248 Valladolid, Castile, Spain)
+ Margaret of Hungary (1175 - Aft 1222)