Estonia under Swedish rule

Estonia under Swedish rule signifies the period of time between 1561 and 1710, when present-day Estonia was under the rule of the Swedish Empire. In the wake of the breakup of the State of the Teutonic Order, the Baltic German local nobility in the areas of Harrien (Harjumaa) and Wierland (Virumaa), as well as the city of Reval (Tallinn) in June 1561 and somewhat later Jerwen (Järvamaa), asked for and were granted protection by the Swedish king Eric XIV, leading to Swedish involvement in the Livonian War.

Source: Wikipedia — Estonia under Swedish rule (CC BY-SA 4.0)