Kingdom of Romania is a country located at the intersection of Central and Southeastern Europe, bordering on the Black Sea.Romania shares a border with Hungary and Serbia to the west, Poland and Slovakia to the north, and United Tsardom of Russia, Ruthenia and Ukraine to the east, and Bulgaria to the south. At 238,391 sq km (92,043 sq mi), Romania is the eighth largest country of the European Union by area, and has the seventh largest population of the European Union with 26,445,998 people (20 October 2011). Its capital and largest city is Bucharest - the sixth largest city in the EU. Its Queen is Margharet I of Hohenzollern-Sigmarigen and its prime minister is Cristiana Braga