Complex sentence: In 1890 Islamized Berisha and Krasniqi in Kosovo allied against Albanian-speaking Catholics from Fandis and attacked their villages--they burned and plundered houses of Fandis, sparing only those of their Muslim lords.
Split into simpler sentences: In 1890 Islamized Berisha and Krasnići in Kosovo allied against Albanian-speaking Catholics from Fandis and attacked their villages. They burned and plundered houses of Fandis, sparing only those of their Muslim lords.