Mieszko III the Old attention of Emperor Frederick Barbarossa, who offered his help in his restoration on the Polish throne after a payment of 10,000 pieces of silver, a sum that Mieszko couldn't reunited. Finally in Pomerania, his other son-in-law Duke Bogislaw I accepted to help him. By the agency of his Pomeranian allies, Mieszko forged his links with their Polish followers, grouped around Zdzisław, Archbishop of Gniezno and in 1181 was able to conquer the eastern Greater Polish lands of Gniezno and Kalisz, which until then had been part of the Seniorate Province. Soon after, Mieszko also managed to recover western Greater Poland.
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