Iván I Danilovich Kalitá shi ne Grand Duke na Moscow daga 1325 da Vladimir daga 1332. Ivan shi ne ɗan Yariman Moscow Daniil Aleksandrovich.Bayan mutuwar ɗan'uwansa Yury, Ivan ya gaji sarautar Moscow.Ivan ya shiga cikin gwagwarmaya don samun lakabi na Grand Duke na Vladimir wanda za'a iya samu tare da amincewar khan na Golden Horde .Babban abokan hamayyar sarakunan Moscow a cikin wannan gwagwarmaya sune sarakunan Tver - Mikhail, Dmitry the Terrible Eyes, da Alexander II, duk wanda ya sami lakabi na Grand Duke na Vladimir kuma an hana shi.An kashe su duka a cikin Golden Horde.A cikin 1328 Ivan Kalita ya sami amincewar khan Muhammad Ozbeg ya zama Grand Duke na Vladimir tare da ikon karɓar haraji daga duk ƙasashen Rasha.A cewar Baumer, Öz Beg Khan ya dauki matakin yanke hukunci a lokacin da ya yi watsi da tsohuwar manufar rarraba da mulki ta hanyar sanya sabon yarima mai jiran gado da alhakin tattarawa da mika dukkan haraji da haraji daga dukkan garuruwan Rasha.Ivan ya ba da waɗannan abubuwan a kan lokaci, don haka ya ƙara ƙarfafa matsayinsa na gata.Ta wannan hanyar ya aza harsashi ga makomar Moscow a matsayin babban iko na yanki.Ivan ya sa Moscow ta kasance mai arziki ta hanyar kiyaye amincinsa ga Horde.Ya yi amfani da wannan dukiya wajen ba da lamuni ga makwaftan kasar Rasha.A hankali waɗannan biranen sun ƙara zurfafa cikin bashi, yanayin da a ƙarshe zai ba wa magajin Ivan damar shigar da su.Babban nasarar Ivan, duk da haka, shine shawo kan Khan a Sarai cewa dansa, Simeon The Proud, ya gaje shi a matsayin Grand Duke na Vladimir kuma daga nan wannan matsayi kusan yana cikin gidan sarauta na Moscow.