nephew Bolesław V from the Duchy of Sandomierz and invested his own son Bolesław with this land. Shortly thereafter, Konrad I and his ally Odonic began the direct war against Spindleshanks. Konrad I unsuccessfully besieged Kalisz, despite the help of Russian troops. Spindleshanks, too busy in his fight against Odonic in the north, couldn't came in time to aid the city; however, the powerful city walls were too much for the Silesian Duke, who was forced to withdraw. Defeat and escape Spindleshanks was soon defeated by his nephew under unknown circumstances, and forced to flee at the court of Duke Casimir I of Opole in Racibórz. The deposition of young Bolesław V by his uncle was the excuse for Henry I to attack the Masovian Duke. Spindleshanks also took advantage of this, and renewed his alliance with the Silesian Duke, with the formally transfer of all his rights over both Greater and Lesser Poland to Henry I. Last attempt to recover Greater Poland In the spring of 1231 Henry I made his last expedition with Spindleshanks against Władysław Odonic. Despite initial success, thanks to the help gave by Paweł, Bishop of Poznań, and Greater Poland noble families Nałęczów, Łabędziów and Niałków, ended in failure at the walls of Gniezno. Mysterious death and succession The expedition against his nephew Odonic was the last political activity of Spindleshanks. Following the information of medieval sources, although not properly confirmed by other sources of information, the demise of the former Duke of Greater Poland was under scandalous circumstances. According to the chronicles from the Cistercian French monk Alberic of Trois-Fontaines the almost seventy-years-old Spindleshanks was murdered in Środa Śląska by a German girl whom he tried to rape. According to some historians the story is not about Władysław Laskonogi, but his nephew Władysław Odonic. Another source who confirm the unworthy conduct of Spindleshanks came from Jan Długosz, who wrote that in the last year of his life his subjects despised him because of his "fornication with prostitutes". The date of death of Władysław III Spindleshanks was generally placed on 3 November 1231 (another proposed date, 18 August, was suggested only by Jan Długosz, wasn't confirmed, and is rejected by historians). It is not known where he was buried. Some researchers, based on the information that the Duke died in exile, believes that Władysław III Spindleshanks was buried in Silesia, perhaps in Racibórz. Others, based