The museum is dedicated to the life and work of the Montenegrin ruler, poet and thinker, Petar II Petrović Njegoš. It was established in 1951 to mark the centenary of Njegoš’s death. The museum is located in the Biljarda, the residence built by Njegoš in 1838 in which he transferred a number of valuable objects and part of the library of Petar I Petrović Njegoš. The building previously had a ground floor and first floor with 25 departments. The first floor consisted of the following : the Armoury, the bishop’s bedroom, the bishop’s study, a room with a billiard table, the “National Office”, Njegoš’s secretary's bedroom, a room for senators and foreign visitors. The ground floor included: the bishop’s kitchen, a dining room with the chimney room, a room for servants and a storage, dining room and the “people's kitchen”. The billiard table, after which the residence was named, is located in the main room. Today, the Njegoš museum has 150 exhibits and a library, which with the help of museum tools give a vivid illustration of the life and work of the bishop, ruler and poet - Petar II Petrović Njegoš. It should be emphasized that the Bilijarda includes a relief map of Montenegro created by Austro-Hungarian military engineers during the Austro-Hungarian occupation from 1916 to 1917. The relief is presented in the scale 1:10,000, by area and 1:15,000 by height.