This diploma thesis deals mainly with iconography of miraculous events at selected places of pilgrimage on the background of their factual history and the overall tradition of certain Marian cults. The first part of the thesis is devoted to the analysis of deliberately chosen pilgrimage sites in all cases, with an emphasis on their initial and other specific miraculous events of non-biblical nature concerning primarily the lives of ordinary people. These analyzes provide a basic insight into the general-factographic history of the relevant sites, which is necessary for the detailed examination of the relevant miraculous events. Primary attention is devoted to the analysis of the original miracles of the pilgrimage sites, especially by their depictions. Within the scope of individual pilgrimage sites, this thesis also seeks to analyze all other pictures of the mercy of the Marian. Great emphasis is also placed on written entries of the mentioned miraculous events, which in most cases very probably preceded their picture delineation. The second part of the thesis tries to systemate the results of the researches and compare them with one another. It is a comparison of the miraculous images that are being discussed, which are done mainly in terms of content and in terms of their writing. It is a...