Bayan shan kashi na Serbia da Bosnia a yakin Kosovo a ranar 15 ga Yuni 1389, Ivan Shishman ya nemi taimako daga Hungary .A lokacin hunturu na 1391-1392, ya shiga tattaunawar sirri tare da Sarkin Hungary Sigismund, wanda ke shirin yaƙi da Turkawa.Sabon Sarkin Daular Usmaniyya Bayezid na I ya yi kamar yana da niyyar lumana domin ya yanke Ivan Shishman daga kawancen da ya yi da Hungarian.Duk da haka, a cikin bazara na 1393 Bayezid ya tara dakaru masu yawa daga yankunan Balkans da Asia Minor ya kai hari Bulgaria .Daular Usmaniyya sun yi tattaki zuwa babban birnin Tarnovo inda suka yi masa kawanya.Ya ba da babban umarni ga ɗansa Celebi, kuma ya umarce shi ya tashi zuwa Tarnovo.Nan take aka yiwa garin kawanya daga ko'ina.Turkawa dai sun yi wa 'yan kasar barazana da wuta da kuma kashe su idan ba su mika wuya ba.Jama'a sun yi turjiya amma daga bisani suka mika wuya bayan wani hari na watanni uku, biyo bayan harin da aka kai musu daga wajen Tsarevets, a ranar 17 ga Yuli, 1393. An mayar da cocin Patriarch's " hawan Almasihu zuwa masallaci, sauran majami'u ma an mayar da su masallaci. zuwa cikin masallatai, wuraren wanka, ko barga.An kona dukkan manyan fada da majami'u na Trapezitsa tare da lalata su.Haka kuma aka sa ran ga tzar fādodin Tsarevets;duk da haka, an bar sassan bangon su da hasumiya a tsaye har zuwa karni na 17.