Prince Popiel ІІ was a legendary 9th century ruler of two proto-Polish tribes, the Goplans and West Polans. He was the last member of the Popielids, a legendary dynasty before the Piasts. According to the chroniclers Gallus Anonymus, Jan Długosz, and Marcin Kromer, as a consequence of his bad rule, he was deposed, besieged by his subjects, and eaten alive by mice in a tower in Kruszwica.