Johann I. von Sachsen-Lauenberg, Duke of Saxe-Lauenburg, was born circa 1248 to Albrecht I. von Sachsen (c1180-1261) and Helene von Braunschweig-Lüneburg (1223-1273) and died 30 July 1286 in Wittenberg, Saxony-Anhalt, Germany of unspecified causes. He married Ingeborg of Sweden (c1254-1302) 1275 JL . Notable ancestors include Charlemagne (747-814), Henry II of England (1133-1189), William I of England (1027-1087), Hugh Capet (c940-996), Alfred the Great (849-899), Rurik (c832-879). Ancestors are from France, the United Kingdom, Germany, Belgium, Russia, Ukraine, Belarus, the Netherlands, the Byzantine Empire.


Offspring of Johann I. von Sachsen-Lauenberg and Ingeborg of Sweden (c1254-1302)
Name Birth Death Joined with
Johann II. von Sachsen-Lauenberg (c1275-1322)
Albrecht III. von Sachsen-Lauenberg (?-1308)
Erich I. von Sachsen-Lauenberg (bef1285-1359) 1285 1359 Nienburg, Germany Elisabeth von Pommern (1291-1349)

Elisabeth von Sachsen-Lauenburg
Helene von Sachsen-Lauenburg (c1280-c1327) 1280 1327 Adolf VI. von Holstein-Schauenburg (1256-1315)

Sophie von Sachsen-Lauenburg

Common ancestors of Johann I. von Sachsen-Lauenburg (c1248-1286) and Ingeborg of Sweden (c1254-1302)

  1. Bolesław III Wrymouth of Poland (1086-1138)
  2. Ingeborg of Kiev (c1104-aft1137)
  3. Knud Lavard (1096-1131)
  4. Ryksa of Poland (c1116-aft1156)
  5. Salomea von Berg-Schelklingen (c1099-1144)
  6. Sofia of Minsk (c1140-1198)
  7. Valdemar I of Denmark (1131-1182)

Footnotes (including sources)

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