Traders anticipating increase in high-spending Americans are already working up Leo-themed beers and ice-creams

Even before the chimney on top of the Sistine Chapel emitted its last puff of white smoke, signalling to the world that the Roman Catholic church had a new pope, Atlante Star, a hotel with a privileged view over St Peter’s Basilica from its rooftop terrace, began to receive inquiries about room availability over the following few days.

Then, about an hour later, when the Chicago-born cardinal Robert Prevost was declared Pope Leo XIV, the inquiries turned into bookings as the tourists, mostly from the US, rushed to secure a place to stay in Rome in time for the pontiff’s inaugural Sunday mass on 18 May.