Pedzisa mutsara unotevera: Nzvimbo dzakakura dzenyika yeRus, kusanganisira Dnieper River uye ndima dzinotambanukira kumaodzanyemba kuGungwa Dema, panguva iyoyo dzaitongwa neLithuania. Kuti vawane udzori hwezvinhu izvi zvikuru, vaLithuania navaRuthenians vakanga varwa ne
Hondo yeBlue Waters muna 1362 kana 1363 vachipesana nevaMongol vaipinda uye vakanga vatora mukana wesimba rekumaodzanyemba nekumabvazuva rakakonzerwa nekuparadzwa kweMongol kweKievan Rus'. Vagari vomunharaunda yakawedzerwa yeGrand Duchy nokudaro vakanga vari zvikurukuru veRuthenian neEastern Orthodox. Kuwedzera kwemiganhu kwakatungamirira kukakavadzana pakati peLithuania neGrand Duchy yeMoscow, iyo yakazviwana ichibudiswa kubva muhurumende yeTatar uye iyo pachayo iri mukuwedzera. Chaizvoizvo muEurope, mubatanidzwa wacho wakabatanidza nyika mbiri dzaiva pamativi akapesana emusiyano mukuru wetsika pakati pechiKristu chokuMadokero kana kuti nyika yechiLatin, uye chiKristu chokuMabvazuva kana kuti nyika yeByzantium.