What years did the Northern Seven Years ' War take place ?
Depending upon what date is chosen for the starting point , the Northern Wars comprise : The Russo - Swedish War ( 1554–57 ) , " First Northern War " according to Arvo Viljanti The Livonian War ( 1558–83 ) , " First Northern War " according to Klaus Zernack The Northern Seven Years ' War ( 1562–70 ) , " First Northern War " according to some Polish historians The Russo - Polish or Thirteen Years ' War ( 1654–67 ) , " First Northern War " according to some Russian historians The Second Northern War ( 1655–60 ) , " First Northern War " according to traditional Anglo-Saxon , German , Russian and Scandinavian historiography The Scanian War ( 1674–79 ) The Great Northern War ( 1700–21 ) , also " Third Northern War " or " Second Northern War "