Radom is a city in east-central Poland, located 100 km south of Poland's capital, Warsaw, on the Mleczna River, in (as of 1999) the Masovian Voivodeship, having previously been the capital of Radom Voivodeship (1975–1998). Despite being part of the Masovian Voivodeship, the city historically belongs to Lesser Poland. For centuries, Radom was part of the Sandomierz Voivodeship of the Kingdom of Poland and the later Polish-Lithuanian Commonwealth. It was an important center of administration, having served as seat of the Crown Council. The Pact of Vilnius and Radom was signed there in 1401, and the Nihil novi and Łaski's Statute were adopted by the Sejm at Radom's Royal Castle in 1505. In 1976, it was a center of anti Communist street protests. Radom is the fourteenth-largest city in Poland and the second-largest in the voivodeship with a population of 213,029 as of 2018, down from 221,066 in 2011.