Vratislaus II of Bohemia
In 1079 after his older brother Bolesław II the Generous was deposed, Władysław I became in the ruler of Poland. By this time he had probably already had Masovia as his own separate district. According to historians, the new ruler was quickly noted as incompetent, and the population began to miss the achievements of the exiled Prince. In 1080, Władysław I married Princess Judith, daughter of Duke Vratislaus II of Bohemia; Przecława, his first (but unrecognized according to the Church) wife was then banished from court. The elevation of his father to the Princely throne, the departure of his mother, who was sent with her family meant for young Zbigniew his removal from the first place in the succession. Around 1086 Władysław I's rule in Poland was threatened by the coronation of his father-in-law Vratislaus II as King of Bohemia and Poland, who at the same time concluded an alliance with King Ladislaus I of Hungary.