Tartu kindlus

Tartu Fortress was a system of defence facilities built in Tartu during the Swedish rule and in the era of Swedish great power in the 17th century and destroyed in the North War. At the end of the 17th century, the Swedish state began erecting new defence buildings in the border zone with the Tsarist State of Moscow, the director of fortifications and the later Governor General of Livonia, Erik Dahlberg, according to the drawings, were repaired and several fortresses of the Swedish Empire were improved, including in Tallinn, Narva, Tartu and Riga.