Probably the brother who caused the first problems to Mieszko II was Bezprym, who allegedly with the support of Otto won the alliance of Kiev in order to take power.
Probabil că fratele care a provocat primele probleme ale lui Mieszko al II-lea a fost Bezprym, care, sprijinit de Otto, s-a aliat cu Rusia Kieveană, cu scopul de a prelua puterea.