Complex sentence: Historically, a number of other military units existed in the territory of Vatican City State with ceremonial rather than military duties, including the Noble Guard and the Palatine Guard, abolished by Pope Paul VI in 1970.
Split into simpler sentences: Historically, a number of other military units existed in the territory of Vatican City State with ceremonial rather than military duties. The Noble Guard and the Palatine Guard were abolished by Pope Paul VI in 1970.