Nielsen Hayden genealogy
Descendants of Isabella of England
1214 - 1241 (27 years)Father: John, King of England (Abt 27 Dec 1166 Oxford, Oxfordshire, England - 19 Oct 1216 Newark Castle, Newark, Nottinghamshire, England)
Mother: Isabel of Angoulême, Queen Consort of England ( - 31 May 1246 bur.Fontévrault Abbey, near Chinon, Anjou, France)
Isabella of England (1214 - 1 Dec 1241)
Friedrich II, Holy Roman Emperor (26 Dec 1194 - 13 Dec 1250)(m. 20 Jul 1235 Worms, Germany)
   └─ Margarethe von Hohenstaufen (Abt Feb 1237 - 8 Aug 1270 Frankfurt-am-Main, Germany)
    Albrecht II of Meissen (1240 - 20 Nov 1315)(m. 1254)
       ├─ Friedrich I of Meissen (1257 - 16 Nov 1323 Wartburg, Eisenach, Thuringia, Germany)
       │ Elisabeth von Lobdeburg-Arnshaugk (1286 - 22 Aug 1359 Gotha, Thuringia, Germany)(m. 24 Aug 1300)
       │    │ + Heinrich II von Hessen (Bef 1302 - 3 Jun 1376)(m. Bef 25 Sep 1320)
       │    └─ Friedrich II of Meissen (1310 Gotha, Thuringia, Germany -
       │     18 Nov 1349 Wartburg, Eisenach, Thuringia, Germany) =>
       │     18 Nov 1349 Wartburg, Eisenach, Thuringia, Germany) =>
       │     + Mechtild of Bavaria (Aft 21 Jun 1313 - 3 Jul 1346 Meissen, Saxony, Germany)
       │     (m. May 1323 Nürnberg, Bavaria, Germany)
       │     (m. May 1323 Nürnberg, Bavaria, Germany)
       └─ Agnes von Meissen (Bef 1264 - Aft 1 Feb 1332)
        Heinrich I of Brunswick (Aug 1267 - 7 Sep 1322)(m. 1282)
            + Adelheid of Everstein ( - Aft 1376)(m. Abt 1335)