Nielsen Hayden genealogy
Descendants of Adelheid von Ravensberg
- Aft 1338Father: Otto III (1246 - Between 25 Mar 1305 and 1306)
Mother: Hedwig zur Lippe ( - 5 Mar 1271)
Adelheid von Ravensberg ( - Aft 13 Apr 1338)
Otto I von Hessen (Abt 1272 - 7 Jan 1328)(m. 1297)
   └─ Heinrich II von Hessen (Bef 1302 - 3 Jun 1376)
    Elisabeth of Meissen (1306 - Bef 10 Nov 1367)(m. Bef 25 Sep 1320)
       └─ Elizabeth von Hessen ( - 7 Mar 1390)
        Ernst of Brunswick (1305 - 24 Apr 1367)(m. 1339)
           └─ Otto of Brunswick (Abt 1340 - 13 Dec 1394 Hardegsen, Lower Saxony, Germany) =>
            + Margareta of Jülich (Abt 1364 - 18 Jun 1442 Hardegsen, Lower Saxony, Germany)(m. Bef 24 Jun 1379)