Nielsen Hayden genealogy
Descendants of Valdemar II Sejr, King of Denmark
1170 - 1241 (70 years)Father: Valdemar I den Store, King of Denmark (14 Jan 1131 - 12 May 1182 Vordingborg, Denmark)
Mother: Sofie of Polotsk (Abt 1141 - 5 May 1198)
Valdemar II Sejr, King of Denmark (28 Jun 1170 - 28 Mar 1241)
Berengaria (Abt 1194 Coimbra, Portugal - 27 Mar 1221 Ringsted, Zealand, Denmark)(m. Between 1213 and 1214)
   ├─ Erik IV-VI, King of Denmark (1216 - 10 Aug 1250)
   │ Jutta of Saxony (Abt 1224 - ??)(m. 17 Nov 1239)
   │    └─ Sofia of Denmark, Queen Consort of Sweden (Abt 1241 - 1286)
   │     Valdemar Birgersson, King of Sweden (1237 - 26 Dec 1302)(m. 1260)
   │         + 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)
   ├─ 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)
   ├─ Abel, King of Denmark (1218 - 29 Jun 1252)
   │ Mechtilde von Holstein (1225 - 1288)(m. 25 Apr 1237)
   │    └─ Sophie Abelsdatter of Denmark & S¢nderjylland (Abt 1240 - Aft 1284)
   │     Bernhard I of Anhalt (Abt 1220 - Between 1286 and 1287)
   │        │ + Helene of Rügen ( - 9 Aug 1315 bur.Wiederstedt Cloister, Saxony-Anhalt, Germany)
   │        │ (m. Bef 27 Dec 1302)
   │        │ (m. Bef 27 Dec 1302)
   │         + Dietrich II of Honstein ( - Between 28 May 1309 and 11 Aug 1309)(m. Bef 28 Nov 1282)
   └─ Christoffer I, King of Denmark (1219 - 29 May 1259 Ribe, Jutland, Denmark)
    Margarete Tczewsko-Lubiszewska (Between 1230 and 1234 - Dec 1282 Rostock, Mecklenburg-Vorpommern, Germany)
    (m. 1248 Fehmarn, Ostholstein, Germany)
    (m. 1248 Fehmarn, Ostholstein, Germany)
       └─ Eric V Klipping, King of Denmark (1249 Lolland, Denmark - 22 Nov 1286 Finderup, Viborg, Denmark)
        Agnes of Brandenburg (Between 1256 and 1261 - Oct 1304 bur.Ringsted, Denmark)(m. 11 Nov 1273)
           └─ Richza of Denmark ( - Between 12 Mar 1303 and 27 Oct 1308) =>
            + Nikolaus II of Werle (Abt 1265 - 12 Oct 1316)(m. Bef 1301)