Częstochowa, pronounced, is a city in southern Poland on the Warta River with 240,027 inhabitants as of June 2009. It has been situated in the Silesian Voivodeship (administrative division) since 1999, and was previously the capital of the Częstochowa Voivodeship (1975–1998). However, Częstochowa is historically part of Lesser Poland, not of Silesia, and before 1795 (see: Partitions of Poland), it belonged to the Kraków Voivodeship. Częstochowa is located in the Kraków-Częstochowa Upland. It is the 13th most populous city in Poland. It is the largest economic, cultural and administrative hub in the northern part of the Silesian Voivodeship. The city is known for the famous Pauline monastery of Jasna Góra, which is the home of the Black Madonna painting (Polish: Jasnogórski Cudowny obraz Najświętszej Maryi Panny Niepokalanie Poczętej), a shrine to the Virgin Mary. Every year, millions of pilgrims from all over the world come to Częstochowa to see it. The city also was home to the Frankism movement in the late 18th and the 19th century. There is also a Lusatian culture excavation site and museum in the city, and ruins of a medieval castle in Olsztyn, approximately 25 kilometres (16 miles) from the city centre (see also Trail of the Eagles' Nests).