Complex sentence: Nueva Vizcaya originally included the area of Spanish settlement north of Zacatecas, encompassing most of the modern Mexican states of Chihuahua and Durango, and parts of Sinaloa, Sonora and Coahuila.
Split into simpler sentences: Nueva Vizcaya originally included the area of Spanish settlement north of Zacatecas. Eventually that included most of the area of the modern Mexican states of Chihuahua and Durango, and at times parts of the states of Sinaloa, Sonora and Coahuila.