Nielsen Hayden genealogy
Descendants of Mechtild of Saxony
Abt 1150 - Bef 1219 (~ 68 years)Father: Heinrich of Saxony (1129 - 6 Aug 1195 Braunschweig, Lower Saxony, Germany)
Mother: Ida von Bliescastel
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)
   │    ├─ 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)
   │    └─ Nikolaus I of Werle (Abt 1213 - 10 May 1277)
   │     Jutta von Anhalt ( - Aft 14 May 1277)(m. Oct 1231)
   │        │ + Richeza Birgersdotter ( - Bef 13 Dec 1288)(m. 1262)
   │         + Sofie von Lindau-Ruppin ( - Between 18 Jan 1301 and 9 Jun 1304)
   └─ 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) =>
       │    │ + Ingeborg of Sweden ( - Bef 1293)(m. 12 Dec 1275 Lödöse, Sweden)
       │    └─ 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)
       └─ 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)