Conclave live: Robert Francis Prevost to be first American pope and will become Leo XIV

Bells ring in St Peter’s Square as cardinals elect successor to Pope Francis

Historically, some of the conclaves were really drawn out: in 13th century, they needed three years, over 1,000 days, to choose Gregory X.

There was also one that ended on the first day, when Julius II in 1503 was elected after just 10 hours.