Complex sentence: In the 19th century some families in Kuči tribe believed that they descend from Riđani, which is refuted by some scholars who believed that this belief was result of the attempt to tie Riđani tribe to Kuči.
Split into simpler sentences: In the 19th century some families in Kuči tribe believed that they descend from Riđani. This belief is refuted by some authors who believed that this belief was result of the attempt to tie Riđani tribe to Kuči.