Nyora kupfuurira kweiyi ndima - Boleslaw-Yuri aive mwanakomana waTrojden I, Duke weMasovia kubva kumhuri yePiast, hama yaWładysław I, uye muzukuru wemukwasha waGediminas Wacław wePłock. Panguva iyoyo Boleslaw akanga ava nemakore gumi nemana uye akanga avimbiswa kuroorwa naEufemija, mwanasikana waGediminas. Liubartas akaramba achitonga Lutsk neVolodymyr-Volynskyi. Nenzira iyoyo Hondo dzeGalicia neVolhynia
dzakanonoka kusvikira pashure pokutapwa kwaBoleslaw muna 1340. Akaiswa chepfu nemadzimambo akapanduka, avo vakakoka Liubartas kuti ave mutongi weGalicia neVolhynia. Manyuko mashoma kwazvo kuti agadzirise zviitiko zvizere pakati pa1341 na1349.