After the death of Serbian Emperor Stefan Dušan in 1355, the magnates in Albania established their own dominions. When Ottoman forces entered Albania, they were faced with small principalities that were engaged in vicious fights among themselves. The first battle against the Ottoman forces in Albania was that of Balša II, the Lord of Zeta, when one of the Albanian rulers, Karlo Thopia, invited Ottomans who defeated and killed Balša II in the battle of Savra which happened on 18 September 1385.