ANALYSIS OF THE SOURCES AND WORKS DEDICATED THE HISTORY OF THE DEFENSE STRUCTURES OF LVIV MIDTOWN
The problem of studies of the fortification development of the Lviv midtown has a long history. As early, Bartlomej Zimorowicz was the first author who covers the history of Lviv at the 17th century. In his work "Leopolis Triplex" he pays a lot of attention to fortifications and presents materials and facts about their construction. Other researchers later relied on his work, in particular, Yaroslaw Widawski, Janusz Witwicki, Wladyslav Tomkewicz and others. Denys Zubrytskyi also made a great contribution to uncovering unknown pages of the construction of Lviv fortifications.