Nielsen Hayden genealogy
Descendants of Ingeborg Eriksdotter
Abt 1212 - 1254 (~ 42 years)Father: Erik X Knutsson, King of Sweden (Abt 1180 - 10 Apr 1216)
Mother: Richiza of Denmark ( - 8 May 1220 bur.Ringsted, Zealand, Denmark)
Ingeborg Eriksdotter (Abt 1212 - 1254)
Birger Magnusson (Abt 1200 - 21 Oct 1266)(m. Abt 1235)
   ├─ Richeza Birgersdotter ( - Bef 13 Dec 1288)
   │ Heinrich I of Werle (Abt 1235 - 8 Oct 1291)(m. 1262)
   │    └─ Richza of Werle ( - Aft 2 Oct 1312 bur.Göttingen, Lower Saxony, Germany)
   │     Albrecht II of Brunswick (Abt 1268 -
   │     22 Sep 1318 bur.Brunswick Cathedral, Braunschweig, Lower Saxony, Germany)(m. 10 Jan 1284)
   │     22 Sep 1318 bur.Brunswick Cathedral, Braunschweig, Lower Saxony, Germany)(m. 10 Jan 1284)
   │        ├─ Magnus I of Brunswick (Abt 1304 -
   │        │ Between 15 Jun 1369 and 15 Aug 1369 bur.St. Michaelis, Lüneberg, Lower Saxony, Germany) =>
   │        │ Between 15 Jun 1369 and 15 Aug 1369 bur.St. Michaelis, Lüneberg, Lower Saxony, Germany) =>
   │        │ + Sophia of Brandenburg (Abt 1300 - 1356)(m. Abt 1327)
   │         + Elizabeth von Hessen ( - 7 Mar 1390)(m. 1339)
   ├─ Valdemar Birgersson, King of Sweden (1237 - 26 Dec 1302)
   │ Sofia of Denmark, Queen Consort of Sweden (Abt 1241 - 1286)(m. 1260)
   │    └─ Ingeborg of Sweden ( - Bef 1293)
   │     Gerhard II of Holstein (Bef 1 Nov 1253 - 25 Oct 1312 bur.Hamburg Cathedral, Hamburg, Germany)
   │     (m. 12 Dec 1275 Lödöse, Sweden)
   │     (m. 12 Dec 1275 Lödöse, Sweden)
   │         + Anastasia of Schwerin-Wittenburg ( - Aft 7 Jun 1314)(m. Between 30 Jul 1313 and 21 Oct 1313)
   └─ Katarina of Sweden (1245 - ??)
    Siegfried I of Anhalt (Abt 1230 - Aft 25 Mar 1298)(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)
            + Bernhard III of Anhalt ( - 20 Aug 1348)(m. Abt 1339)