Editing Pope Sixtus V (section)

===Cardinal===
During the pontificate of his political enemy Gregory XIII (1572–1585), Cardinal Montalto, as he was generally called, lived in enforced retirement, occupied with the care of his property,<ref name=EB1911/> the Villa Montalto, erected by [[Domenico Fontana]] close to the cardinal's church on the [[Esquiline Hill]], overlooking the ancient [[Baths of Diocletian]]. The first phase (1576–1580) of the building was enlarged after Peretti became pope and was able to [[Urban renewal|clear buildings to open four new streets]] in 1585–86. The villa contained two residences, the ''Palazzo Sistino'' or "Palazzo di Termini"<ref group="note">"Termini" was the name given to that district, derived in turn from the ruins of the immense [[Baths of Diocletian]] (in [[Latin language|Latin]], ''[[thermae]]'')</ref> and the casino, called the ''Palazzetto Montalto e Felice''.

This clearance programme was an undoubted gain in the relief it brought to the congestion of the crowded medieval city. Clearly, however, Romans displaced by it were furious, and resentment was still felt centuries later until the decision was taken to build [[Roma Termini railway station]], inaugurated by [[Pope Pius IX]] in 1863, on the site of the Villa, which became doomed to destruction.

Cardinal Montalto's other occupation at this period was with his studies, one of the fruits of which was an edition of the works of [[Ambrose]].<ref name=EB1911/> As pope he would personally supervise the printing of an improved edition of Jerome's [[Vulgate]].