Nielsen Hayden genealogy
Descendants of Alfonso X, King of Castile and León
1221 - 1284 (62 years)Father: 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)
Mother: Elizabeth von Hohenstaufen (Between Mar 1205 and May 1205 - 30 Nov 1235)
Alfonso X, King of Castile and León (21 Nov 1221 Toledo, Toledo, Castilla-La Mancha, Spain - 4 Apr 1284 Seville, Andalusia, Spain)
Maria Guillen de Guzmán ( - 1262)
:   └─ Beatriz of Castile
:    Afonso III, King of Portugal (5 May 1210 Coimbra, Portugal - 16 Feb 1279 Lisbon, Portugal)(m. 1253)
:       └─ Diniz, King of Portugal (9 Oct 1261 Lisbon, Portugal - 7 Jan 1325)
:        St. Isabel of Portugal (4 Jan 1271 Zaragoza, Aragón, Spain - 4 Jul 1336)
:        (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)
Yolande of Aragón (Bef Jan 1238 - 1301 Roncevalles, Navarre, Spain)(m. 26 Nov 1248 Valladolid, Castile, Spain)
   └─ Sancho IV, King of Castile and León (13 May 1258 - 25 Apr 1295 Toledo, Toledo, Castilla-La Mancha, Spain)
    Maria de Molina (Abt 1262 - 17 Jul 1321 Valladolid, Castile, Spain)(m. 1281)
       ├─ Fernando IV, King of Castile (6 Dec 1285 Seville, Andalusia, Spain -
       │ 7 Sep 1312 Jaén, Andalusia, Spain)
       │ 7 Sep 1312 Jaén, Andalusia, Spain)
       │ Costanza of Portugal (3 Jan 1290 - 23 Nov 1313 Sahagún, León, Spain)
       │ (m. Jan 1302 Valladolid, Castile, Spain)
       │ (m. Jan 1302 Valladolid, Castile, Spain)
       │    └─ Alfonso XI, King of Castile and Leon (13 Aug 1311 Salamanca, Salamanca, Spain -
       │     26 Mar 1350 Gibraltar, Spain) =>
       │     26 Mar 1350 Gibraltar, Spain) =>
       │     + Maria of Portugal (Abt 1313 - 13 Jan 1357 Évora, Alentejo, Portugal)(m. Sep 1328)
       └─ Beatriz of Castile (1293 Toro, Castile, Spain - 25 Oct 1359 Lisbon, Portugal)
        Afonso IV, King of Portugal (Lisbon, Portugal;8 Feb 1291 - 28 May 1357)
        (m. 12 Sep 1309 Lisbon Cathedral, Lisbon, Portugal)
        (m. 12 Sep 1309 Lisbon Cathedral, Lisbon, Portugal)
           └─ Maria of Portugal (Abt 1313 - 13 Jan 1357 Évora, Alentejo, Portugal) =>
            + Alfonso XI, King of Castile and Leon (13 Aug 1311 Salamanca, Salamanca, Spain -
            26 Mar 1350 Gibraltar, Spain)(m. Sep 1328)
            26 Mar 1350 Gibraltar, Spain)(m. Sep 1328)