Complex sentence: The Banat Swabians are an ethnic German population in Southeast Europe, part of the Danube Swabians, who immigrated over 200 years ago to the Banat, which had been left sparsely populated by the wars with Turkey.
Split into simpler sentences: The Banat Swabians are an ethnic German population in Southeast Europe, part of the Danube Swabians. They immigrated over 200 years ago to the Banat, which had been left sparsely populated by the wars with Turkey.