The war with the House of Ascania wasn't limited to the border areas of Greater Poland. By 1272 Bolesław entered in an alliance with Mestwin II, Duke of Pomerania-Gdańsk; one year later (in 1273), he renewed his homage to Brandenburg and promised his help to the Margraviate against all his enemies, except the Duke of Greater Poland. In the same year was launched another expedition against Brandenburg. Although nominal leadership of the troops was given by Bolesław to his young nephew Przemysł II, the expedition was actually headed by experienced commanders such as the voivode of Poznań, Przedpełk Łodzia, and the castellan of Kalisz Janek. They successfully reconquered both Drezdenko and Strzelce. The last campaign against Brandenburg during Bolesław's lifetime took in the summer of 1278, when Greater Poland troops advanced to Myślibórz and eventually recovered Santok.