Understanding what a papal conclave is will grant you insights into the sacred Roman Catholic Church tradition. Learn more here.

With Pope Francis, 88, undergoing treatment, the Vatican prepares for a possible papal conclave. Among the 138 eligible voters, four are Indian cardinals. The conclave follows a secretive process, requiring a two-thirds majority vote.

Pope Francis, 88, is receiving treatment at Rome's Gemelli Hospital following serious lung problems, fueling conjectures regarding the next papal election.

Concerns over Pope Francis' health have mounted in recent years as have questions about his succession. Here's what we know.