While Pope Francis accomplished a lot in his 12-year papacy, he left much unfinished business and many challenges for his successor—from the Vatican’s disastrous finances to the wars raging on multiple continents and discontent among traditionalists about his crackdown on the

It is a conclave of superlatives. More Catholic Church cardinals will move into the Sistine Chapel in the Vatican on May 7 than for any papal election to date: 133 cardinals are expected. It will then be closed-door deliberations until they reach a majority in favor of a single choice for the new pope.