 Murad fought against the powerful beylik of Karaman in Anatolia and against the Serbs, Albanians, Bulgarians and Hungarians in Europe.In particular, a Serb expedition to expel the Turks from Adrianople led by the Serbian brothers King Vukašin and Despot Uglješa, was defeated on September 26, 1371, by Murad's capable second lieutenant Lala Şâhin Paşa, the first governor ("beylerbey") of Rumeli.In 1385, Sofia fell to the Ottomans.