Some hotels model themselves on stately homes or aristocratic townhouses; Residenza Napoleone III is named for the emperor who once stayed here – is the real thing. The Old Master paintings you see on the walls, the busts of Roman emperors that line the grand entrance staircase, the heirloom antiques that decorate the place – all these things have been in the Ruspoli family for generations. But this is no draughty castle – it feels warm despite the grand setting. Though you’re left to enjoy your suite of rooms without maids meddling and butlers bustling, a charming fixer is there to help out.