The building comes with it. Read story here. Caravaggio was a trend-setting Renaissance painter and fugitive murderer who died in his 30s under mysterious circumstances (read about him here). For a fascinating book about a manhunt for one of his “lost” paintings, go here.
One would have to move to Rome. It is just a small Villa all six stories. The Italians used to be a little touchy about foreigners buying property in the nation.
Given the limited pool of potential buyers, they can’t be picky. More likely than not their new neighbor will be a Saudi prince or Russian oligarch. Conveniently for him, absolution of his sins is just down the block.