But since his election Pope Francis has been living in a simple two-room suite in the Domus Santa Marta - a hotel-style residence built by Pope John Paul II next to St Peter's Basilica.

BBC: Pope Francis shuns grand apartment for two rooms

Among the things the cardinals have to do is draw lots for which rooms they get at the Casa Santa Marta, the hotel within the walls of Vatican City where they stay during the conclave.

CNN: Conclave to elect new pope set for Tuesday

The cardinals stay in the Casa Santa Marta, a Vatican City hotel, for the duration of the conclave, moving from there to the Pauline Chapel to pray or the Sistine Chapel to vote.

CNN: March 13, 2013 -- Updated 1133 GMT (1933 HKT)