Cluj-Napoca, commonly known as Cluj, is the second most populous city in Romania, after the national capital Bucharest, and the seat of Cluj County in the northwestern part of the country. Geographically, it is roughly equidistant from Bucharest, Budapest and Belgrade. Located in the Someșul Mic River valley, the city is considered the unofficial capital to the historical province of Transylvania. From 1790 to 1848 and from 1861 to 1867, it was the official capital of the Grand Principality of Transylvania. Other names for the city include: ;, ; Medieval Latin: Castrum Clus, Claudiopolis; and, Kloiznburg. , 324,576 inhabitants live within the city limits, marking a slight increase from the figure recorded at the 2002 census. The city spreads out from St. Michaels Church in Unirii Square, built in the 14th century and named after the Archangel Michael, the patron saint of Cluj-Napoca. The boundaries of the municipality contain an area of . Cluj-Napoca experienced a decade of decline during the 1990s, its international reputation suffering from the policies of its mayor at the time, Gheorghe Funar. Today, the city is one of the most important academic, cultural, industrial and business centres in Romania. Among other institutions, it hosts the countrys largest university, Babeș-Bolyai University, with its famous botanical garden; nationally renowned cultural institutions; as well as the largest Romanian-owned commercial bank. In 2015, Cluj-Napoca was European Youth Capital.