Nielsen Hayden genealogy
Descendants of Ermgard
Ermgard
   └─ Heilwig von Bronkhorst ( - Bef 1331)
    Heinrich I of Holstein (Between 1255 and 1260 - 5 Aug 1304 bur.Itzehoe, Schleswig-Holstein, Germany)(m. 1289)
       └─ Gerhard III of Holstein (Abt 1293 - 1 Apr 1340 Sankt Mortens, Randers, Denmark)
        Sophia of Werle ( - Aft 6 Dec 1339)(m. Abt 1314)
           └─ Heinrich II of Holstein (Between 1316 and 1318 - Bef 17 Apr 1390) =>
            + Ingeburg of Mecklenburg ( - Aft 25 Jul 1395)(m. Abt 1366)