French Cardinal Christophe Pierre, 79, has worked the past 48 years in the Vatican’s diplomatic service, most recently as papal nuncio to the United States for the past nine years.

Although not a familiar name in the U.S. press, Hungarian Cardinal Péter Erdo of Esztergom-Budapest, 72, is a major figure among his peers in Europe, the church’s traditional heartland and the region of about 38.5% of the cardinal electors.

As the Catholic Church’s cardinals prepare to elect a new pope, they must be wary of “elegant speeches” that hide a subtle cruelty toward the poor and vulnerable, said the Vatican’s former doctrinal chief.

The challenge of leading a Catholic flock of 1.4 billion, from that moment on, will be on his shoulders. From theologians to Vatican insiders, there’s agreement that the next pontiff must balance deep faith with sharp governance.

St. John Paul II had the Domus Sanctae Marthae built primarily to house cardinals in simple comfort during a conclave.

The Holy See’s diplomat to the United Nations has reiterated a call to end nuclear proliferation, saying the best way to honor the late Pope Francis is to “rediscover the spirit” that created the global organization following World War II, and collaboratively strive for peace.

Cardinal Luis Antonio Tagle is a popular speaker who is comfortable in several languages, has traveled extensively and is known for his focus on evangelization and care for the poor and for immigrants.

The face of the Catholic Church’s push to reestablish its relationship with the world of culture, a 59-year-old Portuguese poet and theologian, is among the youngest of the cardinals mentioned as a contender to become the successor of St. Peter.

As successors to the apostles, members of the College of Cardinals are called to follow the example of Christ who came to serve and not be served, the subdean of the college said.

The conclave to elect a new pope, scheduled to begin May 7, is governed by two texts: a rule book and a prayer book.