Nielsen Hayden genealogy
Descendants of Siegfried I of Anhalt
Abt 1230 - Aft 1298 (~ 68 years)Father: Heinrich I von Anhalt (Abt 1170 - Between 1251 and 1252)
Mother: Irmgard von Thüringen (Abt 1197 - Abt 1244)
Siegfried I of Anhalt (Abt 1230 - Aft 25 Mar 1298)
Katarina of Sweden (1245 - ??)(m. Bef 17 Oct 1259)
   └─ Albrecht I of Anhalt ( - Between 17 Aug 1316 and 2 Mar 1317)
    Agnes of Brandenburg ( - 4 Jun 1330 bur.St. Nikolai, Zerbst, Saxony-Anhalt, Germany)(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)
               ├─ 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)
               │ Saxony, Germany)(m. Bef 17 Aug 1372)
               │    └─ Erich of Brunswick ( - 28 May 1427 bur.St. Alexander, Einbeck, Lower Saxony, 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)
                    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)
                           └─ Margaret of Denmark (23 Jun 1456 -
                            14 Jul 1486 Stirling, Stirlingshire, Scotland) =>
                            14 Jul 1486 Stirling, Stirlingshire, Scotland) =>
                            + James III, King of Scots (26 May 1452 Castle of St. Andrews, St. Andrews,
                            Fife, Scotland - 11 Jun 1488 Sauchieburn, near Stirling, Stirlingshire,
                            Scotland)(m. 13 Jul 1469 Holyrood Abbey, Edinburgh, Midlothian, Scotland)
                            Fife, Scotland - 11 Jun 1488 Sauchieburn, near Stirling, Stirlingshire,
                            Scotland)(m. 13 Jul 1469 Holyrood Abbey, Edinburgh, Midlothian, Scotland)