With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Swedish Empire was ruled by Gustavus Adolphus from 1611 to 1632.
text_B: The Swedish Empire -LRB- stormaktstiden , `` the era of great power '' -RRB- refers to the Kingdom of Sweden 's territorial control of much of the Baltic region during the 17th and early 18th centuries , a time when Sweden was one of the great European powers .. Swedish. Swedish language. Baltic region. Baltic region. great European powers. Great power. The beginning of the Empire is usually taken as the reign of Gustavus Adolphus , who ascended the throne in 1611 , and the end as the loss of territories in 1721 following the Great Northern War .. Gustavus Adolphus. Gustavus Adolphus of Sweden. Great Northern War. Great Northern War. In Swedish history , the period is referred to as stormaktstiden , literally meaning `` the Great Power era '' .. Swedish. Swedish language. After the death of Gustavus Adolphus in 1632 , the empire was , over lengthy periods , controlled by part of the high nobility , most prominently the Oxenstierna family , acting as tutors for minor regents .. Gustavus Adolphus. Gustavus Adolphus of Sweden. Oxenstierna. Oxenstierna. The interests of the high nobility contrasted with the uniformity policy -LRB- i.e. , the upholding of the traditional equality in status of the Swedish estates favoured by the kings and peasantry -RRB- .. Swedish. Swedish language. uniformity policy. uniformity policy. In territories acquired during the periods of de facto noble rule , serfdom was not abolished , and there was also a trend to set up respective estates in Sweden proper .. serfdom. serfdom. Sweden proper. Sweden proper. The Great Reduction of 1680 put an end to these efforts of the nobility and required them to return estates once gained from the crown to the king .. Great Reduction. Great Reduction ( Sweden ). Serfdom , however , remained in force in the dominions acquired in the Holy Roman Empire and in Swedish Estonia , where a consequent application of the uniformity policy was hindered by the treaties by which they were gained .. Swedish. Swedish language. uniformity policy. uniformity policy. Holy Roman Empire. Holy Roman Empire. Swedish Estonia. Swedish Estonia. After the victories in the Thirty Years ' War , the climax of the great power era was reached during the Second Northern War , when their primary adversary Denmark was neutralized by the Treaty of Roskilde in 1658 .. Treaty of Roskilde. Treaty of Roskilde. Second Northern War. Second Northern War. However , in the further course of this war as well as in the subsequent Scanian War , Sweden was able to maintain her empire only with support of her closest ally , France .. Scanian War. Scanian War. France. France. Charles XI of Sweden consolidated the empire and ensured a period of peace , before Russia , Saxony and Denmark started a concerted attack on his successor , Charles XII .. Charles XI of Sweden. Charles XI of Sweden. Charles XII. Charles XII of Sweden. After initial Swedish victories , Charles secured the empire for some time in the Peace of Travendal -LRB- 1700 -RRB- and the Treaty of Altranstadt -LRB- 1706 -RRB- , before the Battle of Poltava -LRB- 1709 -RRB- finally brought the great power era of Sweden to an end .. Swedish. Swedish language. Peace of Travendal. Peace of Travendal. Battle of Poltava. Battle of Poltava
related.