Mieszko I of Poland husband from the monastery of Kalbe. They had three sons: After a struggle for power between Bolesław I and Oda with her minor sons (Bolesław's half-brothers), the eldest son of Mieszko I took control over all of his father's state and expelled his stepmother and her sons from Poland. Mieszko I of Poland Mieszko I (; – 25 May 992) was the ruler of the Polans from about 960 until his death. A member of the Piast dynasty, he was a son of the legendary Siemomysł, and a grandson of Lestek. He was the father of Bolesław I the Brave
Mieszko II Lambert talented ruler. Since Mieszko II was politically active before his father's death, Bolesław I appointed him as his successor. He participated mainly in German politics, both as a representative of his father and the commander of the Polish troops. In 1013 Mieszko II went to Magdeburg, where he paid homage to the Emperor Henry II. A few months later Bolesław I paid homage in person. The real purpose of Mieszko's visit is unclear, especially since soon after his father paid homage to the Holy Roman Empire. Presumably, the young prince paid homage for Milsko or Moravia and Lusatia. The relevant