Rubuta ci gaba don wannan sakin layi - Tare da barazanar Ottoman da ke ƙaruwa a cikin Balkans, Jovan Ugleša da 'yan'uwansa Vukašin Mrnjavčević da Gojko Mrnjavčević sun yi ƙoƙarin yin hamayya da Turkawa. An kashe Jovan Uglješa a ranar 26 ga Satumba 1371 a yakin Maritsa
Ka yi haƙuri. Sojojin su sun murkushe sojojin kwamandojin Ottoman Lala Shahin Pasha da Gazi Evrenos a yakin Maritsa a 1371. Rashin nasarar ya haifar da manyan sassan yankin Makidoniya da ke ƙarƙashin ikon Ottoman. Bugu da ƙari, an kashe 'yan'uwa biyu a lokacin yakin. Ƙarfin zuciyarsu da sadaukar da kansu ya sa suka zama jaruman waƙoƙin Bulgeriya da Serbia.