Nielsen Hayden genealogy
Ancestors of Margarete Tczewsko-Lubiszewska
1234 - 1282 (~ 52 years)
┌── Sobieslaw I of Eastern Pomerania 
(Abt 1130 - Between 1177 and 1179)
(Abt 1130 - Between 1177 and 1179) ┌── Msciwoj I of Eastern Pomerania (Abt 1160 - May 1213)
(Abt 1160 - May 1213) ┌── Sambor II of Eastern Pomerania (Between 1206 and 1207 - 1278)(m. 1229)
(Between 1206 and 1207 - 1278)(m. 1229) │ └── Swinislawa ( - 4 Sep 1228)
( - 4 Sep 1228) │
Margarete Tczewsko-Lubiszewska (Between 1230 and 1234 - Dec 1282 Rostock, Mecklenburg-Vorpommern, Germany)
│
│ ┌── Niklot, Prince of the Obotrites (Abt 1100 - Aug 1160)
(Abt 1100 - Aug 1160) │ ┌── Przybyslaw, Prince of the Obotrites (Abt 1120 -
│ │ 30 Dec 1178 Lüneburg, Lower Saxony, Germany)
(Abt 1120 -│ │ 30 Dec 1178 Lüneburg, Lower Saxony, Germany)
│ ┌── Heinrich Burwin I (Bef 1150 - 28 Jan 1227)(m. 1166)
(Bef 1150 - 28 Jan 1227)(m. 1166) │ │ │
│ │ │ ┌── Wartislaw I (Abt 1100 - Between 1140 and 1148)
(Abt 1100 - Between 1140 and 1148) │ │ └── Wojslawa ( - 1172)
( - 1172) │ │
│ ┌── Heinrich Burwin II (Abt 1170 - 5 Dec 1226)(m. Abt 1200)
(Abt 1170 - 5 Dec 1226)(m. Abt 1200) │ │ │
│ │ │ ┌── Heinrich of Saxony (Abt 1100 - 20 Oct 1139)(m. 29 May 1127) =>
(Abt 1100 - 20 Oct 1139)(m. 29 May 1127) => │ │ │ ┌── Heinrich of Saxony (1129 - 6 Aug 1195 Braunschweig, Lower Saxony, Germany)
(1129 - 6 Aug 1195 Braunschweig, Lower Saxony, Germany) │ │ │ │ └── Gertrud von Süpplinburg (18 Apr 1115 - Abt 18 Apr 1143)(m. 29 May 1127) =>
(18 Apr 1115 - Abt 18 Apr 1143)(m. 29 May 1127) => │ │ │ │
│ │ └── Mechtild of Saxony (Abt 1150 - Bef 1219)(m. 1166)
(Abt 1150 - Bef 1219)(m. 1166) │ │ │
│ │ │ ┌── Gottfried I ( - Aft 1135) =>
( - Aft 1135) => │ │ └── Ida von Bliescastel
│ │ └── (Unknown) of Lorraine
│ │
└── Mechtild von Mecklenburg ( - 23 Nov 1270)(m. 1229)
( - 23 Nov 1270)(m. 1229) └── Kristina ( - Aft 20 May 1248)(m. Abt 1200)
( - Aft 20 May 1248)(m. Abt 1200)