After a short time at the Bohemian court of Duke Vladislaus II, Agnes' half-brother, King Conrad III of Germany, offered his hospitality to the Polish ducal family, who settled at the "Kaiserpfalz" of Altenburg. At first, it seemed that Władysław II would soon regain power in Poland. A German expedition against the junior dukes was launched in 1146, but due to flooding of the Oder River and the pressures on the German king by the margraves Albert the Bear and Conrad of Meissen, the campaign failed.