A 1389 Dmitry Donskoy mutu.Ya nada dansa Vasily Dmitrievich a matsayin magajin, tare da tanadi cewa idan Vasily ya mutu yana jariri, ɗan'uwansa, Yury Dmitrievich, zai zama magajin.Vasily ya mutu a 1425 kuma ya bar yaro Vasily Vasilyevich, wanda ya nada a matsayin Grand Prince (wanda aka sani da Vasily II).Wannan ya sabawa ka'idar data kasance, inda babban ɗan'uwa mai rai ba ɗa ba, yakamata ya karɓi kambi.A 1431 Yury yanke shawarar neman lakabi na Prince of Moscow tare da Khan na Horde.Khan ya yanke hukunci a kan Vasily, kuma ya umarci Yury ya ba Vasily garin Dmitrov, wanda ya mallaka.An gano ainihin dalilin fara yaƙi a shekara ta 1433, lokacin da ake bikin aure na Vasily mahaifiyarsa, Sophia ta Lithuania, ta zagi Vasily Yurevich, ɗan Yuri, a fili.Duk 'ya'yan Yury, Vasily da Dmitry, sun tafi Galich.Sun wawashe Yaroslavl, wanda wani ƙawance na Vasily II ya yi mulki, suka haɗa kai da mahaifinsu, suka tattara sojoji, suka ci sojojin Vasily II.Daga baya, Yury Dmitrievich ya shiga Moscow, ya bayyana kansa a matsayin Babban Yarima, kuma ya aika Vasily II zuwa Kolomna.A ƙarshe, duk da haka, bai nuna kansa a matsayin ƙwararren shugaban ƙasa ba, bayan da ya ware wasu Muscovites da suka gudu zuwa Kolomna, har ma ya raba 'ya'yansa maza.A ƙarshe, Yury ya haɗa kai da Vasily II akan 'ya'yansa maza.A cikin 1434. An ci sojojin Vasily II a wani babban yaƙi.Vasily Yurevich ya ci Galich, kuma Yury ya fito fili ya shiga 'ya'yansa maza.Yury ya sake zama Yariman Moscow, amma ba zato ba tsammani ya mutu, kuma ɗansa Vasily Yurevich ya zama magajinsa.