title: John III, Duke of Saxe-Lauenburg
text: # John III, Duke of Saxe-Lauenburg
  
  John III of Saxe-Lauenburg (mid 1330s – 1356) was the eldest son of Duke Albert IV of Saxe-Lauenburg and Beata of Schwerin (*?–before 1341*), daughter of Gunzelin VI, Count of Schwerin. John III succeeded his father in 1343 as Duke of Saxe-Bergedorf-Mölln, a branch duchy of Saxe-Lauenburg. He died without an heir and was succeeded by his younger brother Albert V.
  
  ## Ancestry
  
  Ancestors of John III, Duke of Saxe-Lauenburg :
  
  John (Johann) III, Duke of Saxony, Angria and WestphaliaHouse of AscaniaBorn: mid-1330s Died: 1356 :
  
  | Regnal titles |||
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  | Preceded byAlbert IV | Duke of Saxe-Bergedorf-Mölln 1343–1356 | Succeeded byAlbert V |
  
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