The Pope appeared amused when a young boy wandered onto stage and refused to leave his side as he addressed thousands of pilgrims.
John Paul the Second is to become a saint, the Vatican announced today, just 8 years after his death.
A cleric, a member of Italy's secret services and a financial broker arrested in an Italian investigation into the Vatican bank.
Cardinal Jorge Mario Bergoglio was a rank outsider to be elected as the next Pope, according to Ladbrokes.
The bookmaker offered odds of 33-1 on Bergoglio to take the Vatican role and claim that no more than £10 was staked on the eventual winner in any single bet.
The new pope's authorised biographer, Sergio Rubin, has said that Cardinal Jorge Bergoglio believes in the importance of pastoral work and building the Catholic flock.
In an interview with the Associated Press, he also dwelled on Bergoglio's humility:
It's a very curious thing: When bishops meet, he always wants to sit in the back rows. This sense of humility is very well seen in Rome.
Rubin said he has also been a vocal critic of human rights abuses and the International Monetary fund:
Bergoglio has been very critical of human rights violations during the dictatorship, but he has always also criticized the leftist guerrillas; he doesn't forget that side ...
Is Bergoglio a progressive — a liberation theologist even? No. He's no third-world priest. Does he criticize the International Monetary Fund, and neoliberalism? Yes. Does he spend a great deal of time in the slums? Yes
Cardinal Jorge Mario Bergoglio has made his first address as the new pope.
He made the address on his St Peter's Square balcony in Latin.
Colonel Christopher Hadfield - an astronaut currently orbiting Earth in the International Space Station - has tweeted an image of the Vatican from space.
Rome, the Vatican, and the surrounding hills. I'm not certain you can make out the new pope from here, though. http://t.co/VXP9bpV6Hs
PM: A momentous day for the 1.2bn Catholics around the world as His Holiness Pope Francis I is appointed the 266th Bishop of Rome.
HABEMUS PAPAM FRANCISCUM
The Latin words translate roughly as: "We have Pope Francis".
The new pope Jorge Bergoglio used to cook his own meals, live in a simple room and eschewed his official limousine to take the bus when he was archbishop of Buenos Aires in Argentina, Channel 4 reports.
Argentine Jorge Bergoglio has been elected pope, the first ever from the Americas and the first from outside Europe in more than a millennium.