Nielsen Hayden genealogy
Descendants of Sophie of Denmark
1217 - 1247 (30 years)Father: Valdemar II Sejr, King of Denmark (28 Jun 1170 - 28 Mar 1241)
Mother: Berengaria (Abt 1194 Coimbra, Portugal - 27 Mar 1221 Ringsted, Zealand, Denmark)
Sophie of Denmark (1217 - 2 Nov 1247 Flensburg, Schleswig-Holstein, Germany)
Johann I of Brandenburg (1213 - 4 Apr 1266)(m. 1236)
   └─ Konrad I (Between 1236 and 1245 - Between 15 Mar 1304 and 21 May 1304)
    Konstancja of Poland (Between 1245 and 1246 - 10 Oct 1281)(m. 1260)
       └─ 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)
                (m. Bef 6 Oct 1356)
                   ├─ Agnes of Brunswick-Lüneburg ( - 21 Mar 1410)
                   │ Albrecht I of Brunswick (Abt 1339 - Between 11 Aug 1383 and 22 Sep 1383 Salzderhelden,
                   │ Lower Saxony, Germany)(m. Bef 17 Aug 1372)
                   │ Lower Saxony, Germany)(m. Bef 17 Aug 1372)
                   │    └─ Erich of Brunswick ( - 28 May 1427 bur.St. Alexander, Einbeck, Lower Saxony,
                   │     germany)
                   │     germany)
                   │     Elizabeth of Brunswick-Göttingen ( - Aft 29 Sep 1444)
                   │     (m. Between 1 Jul 1405 and 14 Jul 1405)
                   │     (m. Between 1 Jul 1405 and 14 Jul 1405)
                   │        └─ Anna of Brunswick-Grubenhagen (Abt 1420 -
                   │         9 Oct 1474 Nannhofen, Bavaria, Germany)
                   │         9 Oct 1474 Nannhofen, Bavaria, Germany)
                   │         + Albrecht III of Bavaria (Munich, Bavaria, Germany;27 Mar 1401 - 29 Feb 1460)
                   │         (m. 22 Jan 1437 Munich, Bavaria, Germany)
                   │         (m. 22 Jan 1437 Munich, Bavaria, Germany)
                   └─ Elisabeth of Brunswick-Lüneburg (Abt 1370 - Bef 3 Apr 1422)
                    Gerhard V of Holstein (Abt 1367 - 5 Aug 1404 Suderhamme, Dithmarschen)(m. 1395)
                       └─ Heilwig of Holstein (1398 - Bef 11 Nov 1436 bur.Oldenburg, Lower Saxony,
                        Germany)
                        Germany)
                        Dietrich of Oldenburg ( - 14 Feb 1440 Delmenhorst, Lower Saxony, Germany)
                        (m. 23 Nov 1423)
                        (m. 23 Nov 1423)
                           └─ Christian I, King of Denmark, Norway, and Sweden (Feb 1426 -
                            21 Mar 1481 Copenhagen, Denmark) =>
                            21 Mar 1481 Copenhagen, Denmark) =>
                            + Dorothea of Brandenburg (1430 - 10 Nov 1495 Kalundborg, Denmark)
                            (m. 28 Oct 1449 Copenhagen, Denmark)
                            (m. 28 Oct 1449 Copenhagen, Denmark)