 Nyora kupfuurira kweiyi ndima - Dušan aive mwanakomana wedangwe waMambo Stefan Dečanski naTheodora Smilets, mwanasikana wamambo Smilets weBulgaria. Akazvarwa munenge muna 1308, kana muna 1312 muSerbia, asi nababa vaDusan vakaendeswa kuConstantinople muna 1314, mhuri yacho yakagara muConstantinople kusvika muna 1320, apo baba vake vakabvumirwa kudzoka. MuConstantinople akadzidza chiGiriki, akawana nzwisiso youpenyu hweByzantine netsika, uye akasvika pakuziva Umambo hweByzantine. Akatora kufarira kukuru muhondo; muhuduku hwake akarwa zvinoshamisa muhondo mbiri: muna 1329 akakunda kurambidzwa Stephen II Kotromanić panguva yeHondo yeHum, uye muna 1330 mambo weBulgaria Michael III Shishman muhondo yeVelbužd. Dečanski akagadza muzukuru wake Ivan Stephen kuburikidza naAna Neda pachigaro cheumambo cheBulgaria muna Nyamavhuvhu 1330. 