Nielsen Hayden genealogy
Descendants of Ida von Bliescastel
Father: Gottfried I ( - Aft 1135)
Mother: (Unknown) of Lorraine
Ida von Bliescastel
Heinrich of Saxony (1129 - 6 Aug 1195 Braunschweig, Lower Saxony, Germany)
   └─ Mechtild of Saxony (Abt 1150 - Bef 1219)
    Heinrich Burwin I (Bef 1150 - 28 Jan 1227)(m. 1166)
       ├─ 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)
       │    │         22 Nov 1286 Finderup, Viborg, Denmark)
       │    │         Agnes of Brandenburg (Between 1256 and 1261 - Oct 1304 bur.Ringsted, Denmark)
       │    │         (m. 11 Nov 1273)
       │    │         (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)
       │    │                └─ Sophia of Werle ( - Aft 6 Dec 1339) =>
       │    │                 + Gerhard III of Holstein (Abt 1293 -
       │    │                 1 Apr 1340 Sankt Mortens, Randers, Denmark)(m. Abt 1314)
       │    │                 1 Apr 1340 Sankt Mortens, Randers, Denmark)(m. Abt 1314)
       │    ├─ 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)
       │    │            └─ Ingeborg of Holstein (Between 1314 and 1317 - Aft 1342)
       │    │             Konrad I of Oldenburg ( - Bef 9 Feb 1348)(m. Bef 13 May 1339)
       │    │                └─ Christian V of Oldenburg ( - Between 10 Nov 1399 and 22 Apr 1403) =>
       │    │                 + Agnes of Honstein (Abt 1360 - 1 Sep 1407)(m. Bef 29 Aug 1377)
       │    └─ 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)
       │        │     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)
       │        │        │ Michaelis, Lüneberg, Lower Saxony, Germany)
       │        │        │ Sophia of Brandenburg (Abt 1300 - 1356)(m. Abt 1327)
       │        │        │    ├─ Sophie of Brunswick ( - 1394) =>
       │        │        │    │ + Dietrich IV of Honstein ( - Between 1378 and 1379)(m. Aft 1350)
       │        │        │    └─ Magnus II of Brunswick (Abt 1328 -
       │        │        │     25 Jul 1373 Leveste, Lower Saxony, Germany) =>
       │        │        │     25 Jul 1373 Leveste, Lower Saxony, Germany) =>
       │        │        │     + Katharina of Anhalt ( - 30 Jan 1390)(m. Bef 6 Oct 1356)
       │        │        └─ Ernst of Brunswick (1305 - 24 Apr 1367)
       │        │         Elizabeth von Hessen ( - 7 Mar 1390)(m. 1339)
       │        │            └─ Otto of Brunswick (Abt 1340 -
       │        │             13 Dec 1394 Hardegsen, Lower Saxony, Germany) =>
       │        │             13 Dec 1394 Hardegsen, Lower Saxony, Germany) =>
       │        │             + Margareta of Jülich (Abt 1364 -
       │        │             18 Jun 1442 Hardegsen, Lower Saxony, Germany)(m. Bef 24 Jun 1379)
       │        │             18 Jun 1442 Hardegsen, Lower Saxony, Germany)(m. Bef 24 Jun 1379)
       │        └─ Johann I of Werle (Abt 1245 - 15 Oct 1283)
       │         Sofie von Lindau-Ruppin ( - Between 18 Jan 1301 and 9 Jun 1304)
       │            └─ Nikolaus II of Werle (Abt 1265 - 12 Oct 1316)
       │             Richza of Denmark ( - Between 12 Mar 1303 and 27 Oct 1308)(m. Bef 1301)
       │                └─ This couple were related to each other. Any descendants have been already
       │                 been listed
       │                 been listed
       └─ Johann I von Mecklenburg (Abt 1211 - 1 Aug 1264)
        Luitgard von Henneberg ( - Bef 14 Jun 1267)(m. Abt 1230)
           ├─ Elizabeth von Mecklenburg ( - Bef 6 Feb 1280)
           │ Gerhard I of Holstein (1232 - 21 Dec 1290)(m. Abt 1250)
           │    ├─ Gerhard II of Holstein (Bef 1 Nov 1253 -
           │    │ 25 Oct 1312 bur.Hamburg Cathedral, Hamburg, Germany)
           │    │ 25 Oct 1312 bur.Hamburg Cathedral, Hamburg, Germany)
           │    │ Ingeborg of Sweden ( - Bef 1293)(m. 12 Dec 1275 Lödöse, Sweden)
           │    │    └─ Gerard IV of Holstein ( - 1317)
           │    │     Anastasia of Schwerin-Wittenburg ( - Aft 7 Jun 1314)
           │    │     (m. Between 30 Jul 1313 and 21 Oct 1313)
           │    │     (m. Between 30 Jul 1313 and 21 Oct 1313)
           │    │        └─ This couple were related to each other. Any descendants have been already
           │    │         been listed
           │    │         been listed
           │    └─ Heinrich I of Holstein (Between 1255 and 1260 -
           │     5 Aug 1304 bur.Itzehoe, Schleswig-Holstein, Germany)
           │     5 Aug 1304 bur.Itzehoe, Schleswig-Holstein, Germany)
           │     Heilwig von Bronkhorst ( - Bef 1331)(m. 1289)
           │        └─ Gerhard III of Holstein (Abt 1293 - 1 Apr 1340 Sankt Mortens, Randers, Denmark)
           │         Sophia of Werle ( - Aft 6 Dec 1339)(m. Abt 1314)
           │            └─ Heinrich II of Holstein (Between 1316 and 1318 - Bef 17 Apr 1390)
           │             Ingeburg of Mecklenburg ( - Aft 25 Jul 1395)(m. Abt 1366)
           │                └─ Gerhard V of Holstein (Abt 1367 - 5 Aug 1404 Suderhamme, Dithmarschen) =>
           │                 + Elisabeth of Brunswick-Lüneburg (Abt 1370 - Bef 3 Apr 1422)(m. 1395)
           └─ Heinrich I von Mecklenburg (Abt 1230 - 2 Jan 1302)
            Anastasia of Pomerania (Abt 1245 - 15 Mar 1317)(m. Abt 1259)
               └─ Heinrich II of Mecklenburg (Abt 1267 Riga, Latvia -
                21 Jan 1329 Sternberg, Mecklenburg-Vorpommern, Germany)
                21 Jan 1329 Sternberg, Mecklenburg-Vorpommern, Germany)
                Anna of Saxe-Wittenberg ( - 22 Nov 1327 bur.Wismar, Mecklenburg-Vorpommern, Germany)
                (m. 6 Jul 1315)
                (m. 6 Jul 1315)
                   └─ Ingeburg of Mecklenburg ( - Aft 25 Jul 1395)
                    Heinrich II of Holstein (Between 1316 and 1318 - Bef 17 Apr 1390)(m. Abt 1366)
                       └─ This couple were related to each other. Any descendants have been already
                        been listed
                        been listed