Nielsen Hayden genealogy
Descendants of Irmgard von Thüringen
Abt 1197 - Abt 1244 (~ 47 years)Father: Hermann I of Thuringia (Abt 1154 - 25 Apr 1217)
Mother: Sophie of Bavaria (Abt 1172 - 15 Jul 1238)
Irmgard von Thüringen (Abt 1197 - Abt 1244)
Heinrich I von Anhalt (Abt 1170 - Between 1251 and 1252)(m. Abt 1211)
   ├─ Hedwig von Anhalt ( - 21 Dec 1259)
   │ Boleslaw II of Silesia (Between 1220 and 1225 - Abt 26 Dec 1278)(m. Between 8 May 1242 and 18 Oct 1242)
   │    ├─ Agnes von Schliesen-Liegnitz (Between 1243 and 1250 -
   │    │ 13 Mar 1265 bur.Stiftskirche (Collegiate Church), Stuttgart, Baden-Württemberg, Germany)
   │    │ 13 Mar 1265 bur.Stiftskirche (Collegiate Church), Stuttgart, Baden-Württemberg, Germany)
   │    │ Ulrich I von Württemberg (Abt 1220 - 25 Feb 1265 bur.Stiftskirche (Collegiate Church), Stuttgart, Baden-
   │    │ Württemberg, Germany)(m. Between 1260 and 1264)
   │    │ Württemberg, Germany)(m. Between 1260 and 1264)
   │    │    └─ Eberhard I von Württemberg (13 Mar 1265 - 5 Jun 1325 Stuttgart, Baden-Württemberg, Germany) =>
   │    │     + Irmgard von Baden ( - Aft 8 Feb 1301)(m. Bef 21 Jun 1293)
   │    ├─ Heinrich V of Silesia (Between 1245 and 1250 - 22 Feb 1296)
   │    │ Elisabeth von Kalisch (Between 1261 and 1263 - 28 Sep 1304)(m. Between 1277 and 1279)
   │    │    ├─ Euphemia of Silesia and Breslau (Between 1278 and 1283 - 4 Apr 1347) =>
   │    │    │ + Otto II of Carinthia (Abt 1265 - 25 May 1310)(m. 1297)
   │    │    └─ Boleslaw III of Silesia (23 Mar 1291 - 20 Apr 1352 bur.Lubiaz, Lower Silesia, Poland) =>
   │    │     + Margareta of Bohemia (Between Apr 1296 and May 1296 - 7 Apr 1322 bur.Zbraslav, Bohemia)
   │    │     (m. Between 1308 and 1310)
   │    │     (m. Between 1308 and 1310)
   │    └─ Bolko I of Silesia (Between 1252 and 1256 - 9 Nov 1301)
   │     Beatrix of Brandenburg ( - Bef 26 Apr 1316)(m. 4 Oct 1281)
   │        └─ Beatrix von Schlesien-Glogau (Abt 1290 - 24 Aug 1322 Munich, Bavaria, Germany) =>
   │         + Ludwig IV, Holy Roman Emperor (11 Mar 1282 - 11 Oct 1347 Puch, Fürstenfeldbruck, Bavaria, Germany)
   │         (m. Between Oct 1308 and 1311)
   │         (m. Between Oct 1308 and 1311)
   ├─ Jutta von Anhalt ( - Aft 14 May 1277)
   │ Nikolaus I of Werle (Abt 1213 - 10 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)
   ├─ Bernhard I of Anhalt (Abt 1220 - Between 1286 and 1287)
   │ Sophie Abelsdatter of Denmark & S¢nderjylland (Abt 1240 - Aft 1284)
   │    ├─ Bernhard II of Anhalt ( - Aft 26 Dec 1323)
   │    │ Helene of Rügen ( - 9 Aug 1315 bur.Wiederstedt Cloister, Saxony-Anhalt, Germany)(m. Bef 27 Dec 1302)
   │    │     + Mathilde of Anhalt ( - Abt 1342)(m. Abt 1339)
   │    └─ Sophie of Anhalt ( - Aft 20 May 1322)
   │     Dietrich II of Honstein ( - Between 28 May 1309 and 11 Aug 1309)(m. Bef 28 Nov 1282)
   │        └─ Dietrich III of Honstein ( - Between 29 Sep 1329 and 4 May 1330) =>
   │         + Elizabeth of Waldeck ( - Aft 1370)
   └─ 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)
            + Bernhard III of Anhalt ( - 20 Aug 1348)(m. Abt 1339)