Complex sentence: In the sixteenth and seventeenth centuries, some Dogras embraced Islam; these factors, together with the effects of immigration into the region, have resulted in the J&K "Dogra" population including members of all three religions.
Split into simpler sentences: In the sixteenth and seventeenth centuries, some Dogras embraced Islam. These factors, together with the effects of immigration into the region, have resulted in the Dogra population of Jammu and Kashmir including members of all three religions.