Mieszko Bolesławowic I Herman. Mieszko was forced to leave his country and his education behind and seek refuge at the friendly court of Ladislaus I of Hungary. The king of Hungary was apparently very fond of young Mieszko and treated him like a son. Following the death of his father in 1081, Mieszko remained in Hungary until 1086 when he is known to have returned to his homeland. There are two conflicting versions explaining the circumstances of this return. Chronicler Gallus Anonymus simply states that Mieszko was peacefully summoned to Poland by his uncle Władysław I Herman. It is likely that this
Mieszko the Younger point, Mieszko III decided to give the district of Kalisz to his youngest son and namesake, as his own Duchy. Mieszko the Younger died on 2 August 1193. He was buried in the crypt founded by his father in the Cathedral of St. Paul the Apostle in Kalisz. Tombstones of Mieszko the Younger and Mieszko III were found during archaeological excavations during 1958–1960. For unknown reasons, Mieszko never married or had children. On his death, Mieszko III give Kalisz to his eldest son Odon. Mieszko the Younger Mieszko the Younger (also known as of Kalisz) () (between 1160 and 1165