Nielsen Hayden genealogy
Descendants of Manfredo, King of Sicily
1232 - 1266 (34 years)Father: Friedrich II, Holy Roman Emperor (26 Dec 1194 - 13 Dec 1250)
Mother: Bianca Lancia (Abt 1212 - ??)
Manfredo, King of Sicily (1232 - 26 Feb 1266)
Beatrice of Savoy (4 Mar 1223 - Bef 10 May 1259)(m. Abt 1248)
   └─ Constance of Sicily (1249 - 1301 Barcelona, Catalonia, Spain)
    Pedro III, King Of Aragón; King Of Sicily (Jul 1240 - 11 Nov 1285)
    (m. 13 Jun 1262 Montpellier, Hérault, France)
    (m. 13 Jun 1262 Montpellier, Hérault, France)
       ├─ St. Isabel of Portugal (4 Jan 1271 Zaragoza, Aragón, Spain - 4 Jul 1336)
       │ Diniz, King of Portugal (9 Oct 1261 Lisbon, Portugal - 7 Jan 1325)
       │ (m. 24 Jun 1282 Barcelona, Catalonia, Spain)
       │ (m. 24 Jun 1282 Barcelona, Catalonia, Spain)
       │    ├─ Costanza of Portugal (3 Jan 1290 - 23 Nov 1313 Sahagún, León, Spain) =>
       │    │ + Fernando IV, King of Castile (6 Dec 1285 Seville, Andalusia, Spain -
       │    │ 7 Sep 1312 Jaén, Andalusia, Spain)(m. Jan 1302 Valladolid, Castile, Spain)
       │    │ 7 Sep 1312 Jaén, Andalusia, Spain)(m. Jan 1302 Valladolid, Castile, Spain)
       │    └─ Afonso IV, King of Portugal (Lisbon, Portugal;8 Feb 1291 - 28 May 1357) =>
       │     + Beatriz of Castile (1293 Toro, Castile, Spain - 25 Oct 1359 Lisbon, Portugal)
       │     (m. 12 Sep 1309 Lisbon Cathedral, Lisbon, Portugal)
       │     (m. 12 Sep 1309 Lisbon Cathedral, Lisbon, Portugal)
       └─ Federico II of Aragón, King of Sicily (13 Dec 1272 - 25 Jun 1337 Palermo, Sicily)
        Eleanora d'Anjou (Aug 1289 - 9 Aug 1341 Catania, Sicily)(m. May 1303 Messina, Sicily)
           ├─ Pietro II of Aragón, King of Sicily (1304 - 15 Aug 1342 Calascibetta, Sicily) =>
           │ + Elisabeth of Carinthia (Abt 1298 - 1352)(m. 23 Apr 1322)
           └─ Elisabeth of Aragon (Abt 1309 - 21 Mar 1349 Landshut, Bavaria, Germany) =>
            + Stephan II of Bavaria (22 Dec 1313 - 19 May 1375 Landshut, Bavaria, Germany)(m. 27 Jun 1328)