Nielsen Hayden genealogy
Descendants of Adelheid von Frontenhausen
Father: Heinrich II ( - 1208)
Mother: Adelheid
Adelheid von Frontenhausen
Konrad I of Nurenberg (Abt 1186 - Between 24 Aug 1260 and 10 Mar 1261)
   └─ Friedrich I-III of Nurenberg (Abt 1220 - 14 Aug 1297)
    Elisabeth von Meran ( - 18 Dec 1272)(m. Bef 10 May 1251)
    :   └─ Maria of Nurenberg ( - Bef 28 Mar 1299)
    :    Ludwig V von Oettingen (Abt 1243 - 9 Nov 1313)(m. Bef 28 Jul 1263)
    :       └─ Ludwig VI von Oettingen (Abt 1270 - 29 Sep 1346) =>
    :        + Agnes von Württemberg ( - 1317)(m. Abt 1300)
    Helene of Saxony ( - 12 Jun 1309 bur.Nuremberg, Bavaria)(m. Bef 10 Apr 1280)
       └─ Friedrich IV of Nurenberg (Aft 15 Aug 1287 - 19 May 1332 Nürnberg, Bavaria, Germany)
        Margareta of Görz ( - Between 26 Jun 1348 and 27 Sep 1348 bur.Cloister Church, Birkenfeld, Rhineland-
        Palatinate, Germany)(m. Bef 2 Aug 1307)
        Palatinate, Germany)(m. Bef 2 Aug 1307)
           └─ Johann I of Nürnberg ( - 7 Oct 1357 bur.Heilsbronn Cloister, Heilsbronn, Bavaria, Germany) =>
            + Elizabeth of Henneberg (Bef 7 Dec 1317 - Between 6 Dec 1377 and 30 May 1391 bur.Cloister Church,
            Birkenfeld, Rhineland-Palatinate, Germany)(m. Bef 3 Mar 1333)
            Birkenfeld, Rhineland-Palatinate, Germany)(m. Bef 3 Mar 1333)