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.
Pope Francis is due to have lunch with his predecessor, Pope Emeritus Benedict XVII, in an event that is believed to be the first ever meeting between a Pope and a former Pope.
Pope Francis will meet with Benedict for a private lunch at his castle residence south of Rome. The new head of the church is usually only elected once the predecessor has passed away, making this a first in the Catholic church.
Crowds at the Vatican are certainly smaller than authorities had planned for the inauguration.
Up to a million had been forecast to flock to Rome for the ceremony.
Pope Francis will deliver the noon blessing from his papal apartment window in St Peter's Square for the first time tomorrow.
The Pope revealed today why he chose the name Francis, and his desire to create a church for the poor.
ITV News correspondent Harry Smith reports:
Pope Francis has been explaining to the world's press why he chose his name.
He recounted how one of his fellow cardinals had turned to him during the Conclave and said: "Don't forget the poor".
He said he saw Saint Francis of Assisi - who lived in Italy in the 13th century - as a "man of poverty and of peace," and spoke of building a "poor Church and a Church for the poor".
He also said he was inspired by Saint Francis' love of nature, adding that "we are not on very good terms with nature today".
Pope Francis is addressing reporters for the first time since we has elected by the College of Cardinals on Wednesday evening.
He described the media as "indispensable" and told reporters that the Roman Catholic Church pays "great heed to your very valuable work".
He also said that the Church is not a political organisation, and invited the media find out about the "true nature of the Church," including its motives and failings.
The spokesman for the Vatican, Federico Lombardi, has expressed his shock at the choice of a Jesuit as the new pope.
He added that: “Jesuits think of themselves servants, not authorities in the church”.
This is Pope Francis' schedule for the next few days (all times are local: GMT+1):
- Thursday 11am - Mass in the Sistine Chapel with the other cardinals
- Friday 11am - Audience with cardinals
- Saturday 11am - Audience with journalists
- Sunday - Pope to recite Angelus
- Tuesday 9:30am - Installation Mass in Sistine Chapel
(Catholic News Service)
Pope Francis has telephones his predecessor, Emeritus Pope Benedict, and will visit him soon, according to Vatican sources.
– Archbishop Vincent Nichols, President, Catholic Bishops' Conference of England and Wales
On behalf of the Catholic Bishops' Conference of England and Wales, I wish to express my great joy at the news of the election of Cardinal Jorge Mario Bergoglio as the 265th Successor of St Peter and Supreme Pontiff of the Catholic Church.
As he begins his new Apostolic ministry, as the Bishop of Rome and Shepherd of the universal Church, Pope Francis I may be assured of the prayers and loving support of the Catholic community throughout England and Wales.