Henry I the Bearded
In the same year the Duke of Greater Poland took advantage from the benevolent neutrality of Henry I the Bearded and finally decided to resolve the conflict with Odonic and took the district of his nephew, forcing him to flee the country. The formal alliance between Spindleshanks and Henry I the Bearded (similar to the previous agreement with Leszek I the White) took place at the end of 1217 or early 1218, during an assembly in Sądowel, through the mediation of the Bishops Paweł II of Poznań and Wawrzyniec of Lubusz. For unknown reasons, the content of the arrangements was beneficial only to the Duke of Greater Poland, who not only received the permission to retain Odonic's district (which included parts of Kalisz, who under the agreement of 1206, was returned to Silesia), but also obtain the district of Lubusz (captured in 1209 by the Margrave of Lusatia Conrad II but recovered by Henry I the Bearded one year later) during his lifetime. The agreement of Sądowel was ratified by a special papal bull issued on 9 May 1218, which further broke down the power of Archbishop Kietlicz.