The Ružić family villa was built in the area of Pećine by Viktor Ružić in 1938. During the period of the Kingdom of Yugoslavia, he was the banus of Sava Banate. Thanks to his marriage with Nada Brlić, daughter of the Croatian writer, Ivana Brlić-Mažuranić, even the Brlić surname became part of the family. At the same time, the Mažuranić surname was connected to Ružić, including the Croatian banus and writer Ivan Mažuranić. Following the traces of these historical and parental bonds, the villa was, in accordance with its owner’s last will, a place where the library was to be found, together with a collection of furniture and objects d’art. The backdrop for this collection is Ivan Mažuranić’s library and his archive. The manuscript of Gundulić’s epic poem, Osman, from 1647 is stored here, a gift of Petar Petrović Njegoš. The library has eight thousand books and there is an archive with two thousands volumes here too. In 1947, the villa received the status of heritage monument. The symbol of the collection is the Smail-aga Čengić’s ring, which is the main character from Mažuranić’s epic poem of the same name.