Decree on House Rents of 29 April 1549
While the city took steps to cope with the influx of pilgrims as best it could, it was also necessary to protect Rome’s poorer denizens, who were in jeopardy of hardship as a result of landlords hiking up rents during a Jubilee. To counter this phenomenon, on 29 April 1549, Pope Paul III issued a decree that froze rents for the entire duration of the 1550 Holy Year, prohibiting landlords from evicting long-term tenants in order to rent out their premises to people willing to pay more.
Santa Sede. Camera apostolica, Decretum Camerae apostolicae in favorem dd. domorum inquilinorum & subinquilinorum factum, de non augendo pensione respectu anni sancti, ac de non expellendo inquilinos & subinquilinos durante locatione & finita locatione de forma obligationis fiendae per dominos volentes damos pro suo usu habere, & de subinquilino non gaudente privilegio inquilini finita locatione sui authoris, Roma 1549