 Ramba uchinyora ndima iyi - Chechi yokuMabvazuva yakaramba ichiderera pamwe chete noUmambo hweRoma yokuMabvazuva Byzantine, ichideredza kutaura kweConstantinople kwokuenzana neRoma. Kaviri Mambo wokuMabvazuva akaedza kumanikidza Chechi yokuMabvazuva kuti ibatanidzwezve neyokumavirira. Chokutanga muDare Rechipiri reLyon 12721274 uye chechipiri muDare reFlorence 14311449. Zvikumbiro zvouchangamire hwaPapa zvaiva chinetso mukubatanidzwazve, uko kwakakundikana muchinoitika chipi nechipi. Muzana remakore rechi15, Umambo hweOttoman hwakakunda Constantinopleuye akagumisa Umambo hweByzantium. 