The moment a cardinal is elected Pope, a tradition stretching back centuries unfolds: the chosen man announces the name he will adopt as the head of the Catholic Church. This act, steeped in history and symbolism, signifies far more than a simple change of title. It represents a new beginning, a connection to papal predecessors, and a statement of intent for his pontificate.
For the first 500 years, popes retained their birth names. However, the practice of adopting a new name became ingrained during the 11th century, a period of German popes who chose names of early church bishops out of “a desire to signify continuity,” said the Rev. Roberto Regoli, a historian at Rome’s Pontifical Gregorian University.
Upon election, the pope is immediately asked to declare his chosen name, the first public indication of his vision for his papacy
The last pope to keep his birth name was Marcellus II in 1555. Over time, adopting a papal name became customary, with most popes choosing names of predecessors or saints they wished to emulate. The most popular papal names have been John, Gregory, Benedict, Clement, and Innocent.
No formal rules
According to history.com, while no formal rules exist for selecting a papal name, tradition is key. Upon election, the pope is immediately asked to declare his chosen name, the first public indication of his vision for his papacy.
The origins of this custom are somewhat debated, with some accounts tracing it back to Pope John II in 533 A.D. Born Mercurius, his birth name was also that of a Roman god, something he reportedly deemed unsuitable for the leader of the Christian faith. This act set a precedent, though it wasn’t immediately followed by all subsequent popes. Over time, however, the practice became more established, solidifying its place within the elaborate traditions of the Catholic Church.
Several factors contribute to a pope’s choice of name. A primary consideration is often honoring a predecessor. A newly elected pope might choose the name of a past pontiff known for his sanctity, leadership, or significant contributions to the Church. For instance, Pope John Paul II’s selection of his name was a tribute to his immediate predecessor, Pope John Paul I, whose own brief papacy had deeply moved him. This act of homage creates a sense of continuity and highlights desired qualities or legacies.
Pope Francis, for example, chose his name to honor St. Francis of Assisi, a figure associated with poverty, simplicity, and love for the poor
Beyond honoring predecessors, a new name can also signal a pope’s vision for his reign. The name can reflect a particular saint, a significant theological concept, or a desired direction for the Church. Pope Francis, for example, chose his name to honor St. Francis of Assisi, a figure associated with poverty, simplicity, and love for the poor. This choice immediately communicated his emphasis on these values and his commitment to serving the marginalised.

The selection process itself is a deeply personal one. While advice and suggestions may be offered, the final decision rests solely with the elected individual. He makes this choice in the “Room of Tears” (Camera Lacrimatoria), a small room adjacent to the Sistine Chapel, where popes traditionally vest for the first time. This moment of reflection and decision underscores the weight and significance of the name the new pope will carry.
The adoption of a new name also marks a symbolic break with the past. Upon becoming Pope, a man transcends his individual identity and takes on a universal role as the shepherd of the world’s largest Christian denomination. The new name signifies this transformation, highlighting his new status and responsibilities.
The adoption of a new name also marks a symbolic break with the past
In conclusion, the tradition of popes choosing new names is a rich tapestry woven with historical, spiritual, and symbolic threads. It is a practice that reflects the continuity of the papacy, honors past leaders, signals a new pope’s vision, and marks the profound transition into a role of immense spiritual authority. This enduring custom continues to shape the identity and narrative of the Catholic Church.
Sources: Catholic Encyclopedia, official Vatican websites, and scholarly works on the history of the papacy.