Kammala jumla mai zuwa: A ranar 26 ga Satumba, 1371, Ottomans sun kayar da babbar rundunar kirista ta jagorancin 'yan uwan Serbia Vukašin Mrnjavčević da Jovan Uglješa a cikin
Yaƙin Chernomen. Nan da nan suka juya kan Bulgaria kuma suka ci arewacin Thrace, Rhodopes, Kostenets, Ihtiman, da Samokov, suna iyakance ikon Ivan Shishman a ƙasashen arewacin tsaunukan Balkan da kwarin Sofia. Ba zai iya yin tsayayya ba, an tilasta wa sarki na Bulgarian ya zama Ottoman vassal, kuma a dawo ya dawo da wasu daga cikin biranen da aka rasa kuma ya tabbatar da shekaru goma na kwanciyar hankali.