The article gives new information on the opera repertoire performed at the stately home at Jaromerice nad Rokytnou, South Moravia, and substantially extends the circle of the relevant scores. The research was based on the group of scores of works by Frantisek Vaclav Mica, the performances of which in Jaromerice are known to have taken place. Similar common features are found in a number of scores of other works performed in Jaromerice (as testified by archive documents), and surviving in Vienna in the collections of the Austrian National Library (Osterreichische Nationalbibliothek) and Gesellschaft der Musikfreunde. The bindings of the opera scores, as well as the types of binding and the shape of their labels are common. The hypothesis on the common origin of these scores is also supported by the fact that they were written by the same scribes (altogether four different types of handwriting were identified). Another common feature are Mica's notes, found on the fly-leaves of some of these scores, as well as Count Questenberg's handwriting on several labels and one fly-leaf. At the end of the article, there is a complete list of all known scores from the former Questenberg collection, together with all their common features.