Pope Francis, who led the Catholic Church for the last 12 years, died on Monday morning.
The Vatican confirmed that he died of a cerebral stroke and cardiocirculatory collapse.
The Pope's death came less than a month after he was released from the hospital after a battle with double pneumonia.
He was 88.
I think Pope Francis will be remembered as a very different kind of Pope.
He was a Pope who really did not stand on ceremony and as the first Jesuit and the first Latin American Pope brought a very different view to the Holy See than we have seen before.
Anthony Fiola is the Rome Bureau chief for the post and has covered Pope Francis for more than a decade.
He says the issues Pope Francis championed from combating climate change to welcoming migrants to expanding acceptance of same-sex couples meant
that he was often seen as a liberal.
But his ideology is not so easily defined.
It's too easy to call him a liberal pope.
You can't really sort of view Catholic Pontiffs as sort of liberal or conservative quite in the same terms that you would pull up politicians.
But certainly during his 12 year pontificate,
he had been more embraced by liberals than he was by ultra conservatives,
even though those liberals would often be frustrated with his pace of change.
The Pope's inclusive approach often provoked criticism from more conservative corners of the Church.
Now, in the wake of his death,
there are a lot of questions about who the new Pope will be and how he might lead the Catholic Church.
Within 15 days to 20 days, there will be a new conclave, the princes of the church,
the cardinals, who will gather together in the Sistine Chapel and elect the next pope.