Whakaotihia te rerenga e whai ake nei: I te matenga o tona papa i te tau 1427, ka riro a Ivan hei Rangatira Nui. I mau tonu tana whanaungatanga pai ki ona hoa noho nui, kaha hoki. I te tau 1429, i haere ia ki te
Ko te Kaunihera o Lutsk me te hanga i a Ryazan hei rangatira o te Grand Duchy o Lithuania i raro i a Vytautas. I hainatia e ia he kirimana rangimarie me Vasily II o Moscow i te 1447 a ka marena i tana tama me te kawana ki te tamahine a Vasily. I te mutunga o tona matenga, ka tonoa e ia ana tamariki tokorua ki te marae i Moscow mo te haumaru. I te wā o te kingitanga o Ivan ka tīmata ngā moni mai i Ryazan ki te whakauru i te ingoa o te rangatira nui.