In this final work, the author analyzes the political situation of Montenegro from 1830 to 1914 Petar II, Danilo I and Nikola I from Petrović-Njegoš dynasty are considered the most important individuals in this final work. During Petar II Petrović-Njegoš period, Montenegro's goal is to gain their independence, since they were considered to be a part of Ottoman Empire, by internal efforts, diplomacy and by countering internal issues. During the time of Danilo I Petrović-Njegoš, Montenegro's territory expanded which caused Montenegro to achieve informal independence recognition from very important countries. On the other side, Danilo I Petrović-Njegoš also conducted some internal reforms resulting in separatism between the Church and the state, that was possible by creating principality. This part of the final work also shows Danilo I.'s ability to centralize the country by defeating the aristocracy that opposed the political unity. The third part of this final work analyzes Nikola I Petrović-Njegoš and his territorial expansion from 1878 to 1913. It also analyzes his relationship with important countries, especially with Russia that was at their peak time in 1878, when Montenegro was internationally recognized as an independent country. After that event of Montenegro's independence, Russia started losing their power. This part also provides better knowledge on Nikola's relationship with his neighbour countries, especially Serbia and their ruling dynasties Obrenović and Karađorđević, as well as the change in the way of governing. Nikola changed Montenegro from being principality into being parliamentary monarchy.