Pleven is the seventh most populous city in Bulgaria. Located in the northern part of the country, it is the administrative centre of Pleven Province, as well as of the subordinate Pleven municipality. It is the biggest economic center in Northwestern Bulgaria. At the end of 2015 its population is 99 628. Internationally known for the Siege of Plevna of 1877, it is today a major economic centre of the Bulgarian Northwest and Central North and the third largest city of Northern Bulgaria after Varna and Rousse.