227th Pope of the Catholic Church. Pontificate 1585 - 1590. His pontificate saw great enterprises and great achievements. He slept little and worked hard. Having inherited a bankrupt treasury, he administered his funds with competence and care, and leaving a much wealthier treasury. The changes wrought by Sixtus on the street plan of Rome were documented in the film, "Rome: Impact of an Idea", featuring Edmund N. Bacon and based on sections of his book Design of Cities.