Complex sentence: The tribe existed largely around the Tumebamba area, sometimes referred to as the "second Cuzco", because the Cañaris (along with Incan influence and mandates) construction was to rival that of the Incan capital Cuzco.
Split into simpler sentences: The tribe existed largely around the Tumebamba area, sometimes referred to as the "second Cuzco". The Cañaris' (along with Incan influence and mandates) construction was to rival that of the Incan capital Cuzco.