Mieszko II Lambert
Expelled by his half-brother Mieszko II Lambert after the death of their father, Bezprym became ruler of large areas of Poland in 1031 following a simultaneous attack by German and Kievan forces and Mieszko II's escape to Bohemia. His reign was short-lived and, according to some sources, extremely cruel. He was murdered in 1032 and Mieszko II returned to the throne of Poland. It is speculated that a pagan reaction began during his short reign.