 Complete the following phrase:  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 Murads capable second lieutet Lala Şâhin Paşa, the first governor beylerbey of Rumeli. In 1385, Sofia fell to the Ottomans. In 1386 Prince Lazar Hrebeljanović defeated an Ottoman force at the 