The family of Pope Francis was far from wealthy but were not destitute. I suppose that the term 'lower middle class' would be appropriate.
Pope Francis chose his name because as a cardinal, he was known to live a simple life and serve the poor and lowly. On the night he was elected he thought about his life and St. Francis of Assisi and because St. Francis also lived a simple life and served the poor, Cardinal Jorge Mario Bergolio decided to honor St. Francis and take his name. He is the first pope with the name Francis.
Pope Francis is pope number 266.
Since Pope Francis is the first and only pope by that name, there is no need for a number after his name. If a pope in the future also decides to take the name Francis, he will become Pope Francis II and then the original Pope Francis will become Pope Francis I.
Pope Francis is the reigning pope in 2013.
Only Pope Francis and God know what Pope Francis thinks.
No, Pope Francis does not smoke.
Pope Francis studied as a Jesuit in Argentina and Germany, and went on to become bishop, and focused efforts on serving the poor.
Pope Francis I is from Buenos Aires, Argentina.
Pope Francis has not been succeeded at the time of this answer.
Pope Francis was elected pope in the Sistine Chapel.
The current Pope Francis is from Argentina.
Pope Francis, elected in 2013, is the 266th pope.