Aleksander Kostka Napierski was an adventurer and officer in the Polish army. During the revolt, he acted most likely as a spy for Bohdan Khmelnytsky or the Prince of Transylvania. He recruited his forces from among some rebellious highlanders in Podhale - a mountainous region in Lesser Poland. They attacked and captured the castle of Czorsztyn in Pieniny. Napierski called on every peasant in Poland to rise and overthrow the nobles and remove them from their positions of power. His attempts to spread the revolt were totally unsuccessful. Napierski and his rebel group remained isolated in the castle, which was soon recaptured by the forces of Piotr Gembicki, bishop of Kraków. Napierski and the other leaders of the revolt were impaled.