Complex sentence: Woodford County is part of what was formerly the homelands of several Native American peoples, including the Meskwaki and the Sauk peoples, just south of the land of the Illiniwek.
Split into simpler sentences: Woodford County is part of what was formerly the homelands of several Native American peoples, including the Meskwaki and the Sauk peoples. It was located just south of the land of the Illiniwek.