city of Lviv

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.

The article analyzes the plan of the city of Lviv by Jean Doetsch from 1770 - one of the first cartographic sources to the history of the city. The significance of the plan for the scientific reconstruction of the state of the architectural and town-planning structures of the city for the second half of the 18th century is revealed. The hypothesis that the map was made for educational and military purposes is substantiated.

The article analyzes the research and design documentation "Historical and
architectural basic plan of the city of Lviv" (2020) in terms of identification and protection of
fortifications. The analysis of the documentation revealed little attention of the authors to the
study and coverage of the stages of development of the fortification lines of Lviv from the XIII
to the XIX century. This approach has led to the debatable identification of many objects by
their historical, urban and architectural value, inaccurate dating, lack of proposals for their