The pope chooses his papal name freely, without any formal rules or fixed system. This tradition dates back to the 6th century and became customary by the 10th century, with every pope since 1555 adopting a new name upon election
. The choice is often deeply symbolic and personal. Popes typically select a name to honor a saint, a predecessor, a mentor, or someone they admire. For example, Pope Francis chose his name to honor St. Francis of Assisi, reflecting values of humility and care for the poor
. Others, like John Paul II, chose their name to honor their immediate predecessor, signaling continuity in their pontificate
. There is an unwritten rule that no pope takes the name "Peter," out of respect for St. Peter, the first pope and apostle
. Beyond that, the pope has wide latitude to pick any name that conveys the message or direction he wishes to set for his papacy. The new papal name is announced publicly in Latin from the balcony of St. Peter's Basilica immediately after the election, following the traditional "Habemus papam" ("We have a pope") declaration
. In summary, the pope's name choice is a personal, symbolic act that reflects his inspirations, the legacy he wishes to honor, and the vision for his leadership of the Catholic Church
