Leopoldov Prison

Leopoldov Prison (Slovak: Nápravnovýchovný ústav a Ústav na výkon väzby Leopoldov) is a 17th-century fortress built against Ottoman Turks that was converted into a high-security prison in the 19th century in the town of Leopoldov, Slovakia. Once the largest prison in the Kingdom of Hungary, in the 20th century it became known for housing political prisoners under the communist regime, notably the future communist President of Czechoslovakia Gustáv Husák.

After the dismantling of communism in 1989, Leopoldov Prison was the place of a series of violent revolts requiring intervention of highest-ranking government officials including Ministers and the Prime Minister, who personally conducted negotiations inside the prison. The building complex was damaged during the riots and in 1990, the Slovak parliament voted to close the prison down. However, it continues to serve until today. Leopoldov Prison was the place of the 1991 prison break, where a group of prisoners fought their way out, murdering several prison guards in the process.