Helene von Braunschweig-Lüneburg (1223-1273)

Biography

Helene Welf von Braunschweig-Lüneburg was born 18 March 1223 to Otto von Braunschweig-Lüneburg (c1204-1252) and Mechthild von Brandenburg (c1210-1261) and died 6 September 1273 of unspecified causes. She married Hermann II. von Thüringen (1223-1241) 1239 ^JL . She married Albrecht I. von Sachsen (c1180-1261) 1248 ^JL . Notable ancestors include Henry II of England (1133-1189), William I of England (1027-1087), Charlemagne (747-814), Hugh Capet (c940-996), Alfred the Great (849-899). Ancestors are from France, the United Kingdom, Germany, Belgium, Russia, Ukraine, the Netherlands, the Byzantine Empire, Sweden, Belarus.

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Offspring of Albrecht I. von Sachsen and Helene von Braunschweig-Lüneburg (1223-1273)
Name	Birth	Death	Joined with
Johann I. von Sachsen-Lauenburg (c1248-1286)	1248	30 July 1286 Wittenberg, Saxony-Anhalt, Germany	Ingeborg of Sweden (c1254-1302)
Albrecht II. von Sachsen-Wittenberg (1250-1298)	1250 Wittenberg, Germany	25 August 1298 Aken, Germany	Agnes von Habsburg (1257-1322)
Helene von Sachsen-Wittenberg (c1253-1309)	1253	12 June 1309	Heinrich III. von Schlesien-Breslau (c1227-1266) Friedrich III. von Nürnberg (c1219-1297)
Rudolf von Sachsen (?-1269)
Elisabeth von Sachsen (?-bef1306)

Common ancestors of Helene von Braunschweig-Lüneburg (1223-1273) and Hermann II. von Thüringen (1223-1241)

1. Adelheid von Sommerschenburg (c1095-c1178)
2. Béla II of Hungary (c1110-1141)
3. Dedo V. von Lausitz (c1121-1190)
4. Gosewijn II van Valkenburg (c1105-1168)
5. Konrad von Meißen (c1098-1157)
6. Mechthilde von Sommerschenburg (c1135-1189)
7. Mstislav I Vladimirovich of Kiev (1076-1132) 

Common ancestors of Helene von Braunschweig-Lüneburg (1223-1273) and Albrecht I. von Sachsen (c1180-1261)

1. Albrecht von Brandenburg (c1100-1170)
2. Bolesław III Wrymouth of Poland (1086-1138)
3. Eilika von Sachsen (c1081-1142)
4. Hermann I. von Winzenburg (c1049-1122)
5. Otto von Ballenstedt (c1071-1123)
6. Ryksa of Poland (c1116-aft1156)
7. Salomea von Berg-Schelklingen (c1099-1144)
8. Sophie von Winzenburg (c1105-1160)

Footnotes (including sources)