First of all we need to know about sovereignty. So it is basically the authority to govern a nation or a group of people. It is the true right to exercise power politically, judicially, legislatively, and/or executively over a geographic region, group of people or oneself. Countries acquire sovereignty by the recognition of its people.
Monaco was granted sovereignty in 1861. It is in France and is famous for its yacht lined harbors and upscale casinos.
Monaco was granted sovereignity in 1861. Before that it was a protectorate of Sardinia ie in 1815. It relies for its defence on France. It is on the south coast of France near Nice. It is known for the large gambling casino of Monte Carlo.