(in English): The thesis focuses on the Loreto litany in Loreto Prague in the 17th and 18th centuries. In the first part, it explores the Loreto litany in its involvement in the liturgy and puts it in context with the reflection of Marian spirituality. The second part examines Loreto litany from the Prague Loreto music collection from the property of Capuchin Order and from the property of the Lobkowicz family. Because some litany have a reduced setting, it extends the view of rural style analysis by examining printed collections of 18th century rural music.