Nielsen Hayden genealogy
Descendants of Heinrich Burwin II
Abt 1170 - 1226 (~ 56 years)Father: Heinrich Burwin I (Bef 1150 - 28 Jan 1227)
Mother: Mechtild of Saxony (Abt 1150 - Bef 1219)
Heinrich Burwin II (Abt 1170 - 5 Dec 1226)
Kristina ( - Aft 20 May 1248)(m. Abt 1200)
   ├─ Mechtild von Mecklenburg ( - 23 Nov 1270)
   │ Sambor II of Eastern Pomerania (Between 1206 and 1207 - 1278)(m. 1229)
   │    └─ Margarete Tczewsko-Lubiszewska (Between 1230 and 1234 -
   │     Dec 1282 Rostock, Mecklenburg-Vorpommern, Germany)
   │     Dec 1282 Rostock, Mecklenburg-Vorpommern, Germany)
   │     Christoffer I, King of Denmark (1219 - 29 May 1259 Ribe, Jutland, Denmark)
   │     (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)
   ├─ Margareta von Mecklenburg ( - Aft 23 Oct 1274)
   │ Günzel III of Schwerin (Abt 1214 - 1274)(m. 30 Oct 1230)
   │    └─ Nikolaus I of Schwerin-Wittenburg ( - Bef 23 Jun 1323)
   │     Miroslava of Pomerania ( - Between 1327 and 1328)(m. Between 1285 and 1290)
   │        └─ Anastasia of Schwerin-Wittenburg ( - Aft 7 Jun 1314) =>
   │         + Gerard IV of Holstein ( - 1317)(m. Between 30 Jul 1313 and 21 Oct 1313)
   └─ Nikolaus I of Werle (Abt 1213 - 10 May 1277)
    Jutta von Anhalt ( - Aft 14 May 1277)(m. Oct 1231)
       ├─ Heinrich I of Werle (Abt 1235 - 8 Oct 1291)
       │ Richeza Birgersdotter ( - Bef 13 Dec 1288)(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)
       └─ Johann I of Werle (Abt 1245 - 15 Oct 1283)
        Sofie von Lindau-Ruppin ( - Between 18 Jan 1301 and 9 Jun 1304)
            + Richza of Denmark ( - Between 12 Mar 1303 and 27 Oct 1308)(m. Bef 1301)