 Ramba uchiverenga ndima ino - Kurasikirwa nePlovdiv hakuratidziki kunge kwakakanganisa basa raIvan, uye akaramba ari mudiwa wamambo. Muna 1328, Ivan akapiwa basa naTsar Michael Shishman rokudzivirira Great Palace yeConstantinople, nzvimbo yaigara mambo Andronikos II Palaiologos. Andronikos II, akatarisana nokukurirwa kwakanga kwava pedyo nomuzukuru wake uye mubatsiri wamambo Andronikos III muhondo yevagari vemo yakatora nguva refu, akanga asingavimbi navarindi vake amene, uye akanga akumbira betsero yaMichael Shishman. Mambo weBulgaria akatumira Ivan wokuRussia pamwe chete navatasvi vemabhiza 3 000 kuConstantinople kuzobatsira. Mukutaura kwomunyori wenhau weByzantine Nikephoros Gregoras, vavariro chaidzo dzaMichael Shishman dzakanga dziri dzokushandisa Ivan navarume vake sebhiza reTrojan. Panguva yakakodzera, varindi vokuBulgaria vaizosunga mambo ndokutora muzinda wacho vasati vabvumira Michael Shishman neuto guru revarwi vechiTatar kupinda muConstantinople. 