How many movies have Mila Vitelli Valenza and Simonetta Vitelli collaborated on?

They have worked on 14 movies together! Their first movie together was Make the Sign of the Cross, Stranger! (1968) while their highest rated movie together was Sartana and His Shadow of Death (1969). They have not worked together since The Godfather's Advisor (1973). They are most known for their western films together.