Nielsen Hayden genealogy
Descendants of Agnes of Brandenburg
- 1330Father: Konrad I (Between 1236 and 1245 - Between 15 Mar 1304 and 21 May 1304)
Mother: Konstancja of Poland (Between 1245 and 1246 - 10 Oct 1281)
Agnes of Brandenburg ( - 4 Jun 1330 bur.St. Nikolai, Zerbst, Saxony-Anhalt, Germany)
Albrecht I of Anhalt ( - Between 17 Aug 1316 and 2 Mar 1317)(m. 1300)
   └─ Mathilde of Anhalt ( - Abt 1342)
    Bernhard III of Anhalt ( - 20 Aug 1348)(m. Abt 1339)
       └─ Katharina of Anhalt ( - 30 Jan 1390)
        Magnus II of Brunswick (Abt 1328 - 25 Jul 1373 Leveste, Lower Saxony, Germany)(m. Bef 6 Oct 1356)
           │ + Albrecht I of Brunswick (Abt 1339 -
           │ Between 11 Aug 1383 and 22 Sep 1383 Salzderhelden, Lower Saxony, Germany)(m. Bef 17 Aug 1372)
           │ Between 11 Aug 1383 and 22 Sep 1383 Salzderhelden, Lower Saxony, Germany)(m. Bef 17 Aug 1372)
           └─ Elisabeth of Brunswick-Lüneburg (Abt 1370 - Bef 3 Apr 1422) =>
            + Gerhard V of Holstein (Abt 1367 - 5 Aug 1404 Suderhamme, Dithmarschen)(m. 1395)