The election of a new pope is a momentous occasion for Catholics worldwide. Yet, one figure always stands at the balcony before the world knows the next pontiff’s name: the cardinal deacon. In 2025, that spotlight belonged to Dominique Mamberti. Known internationally for his diplomatic skill and composed presence, Mamberti’s role and background are essential to understanding recent Vatican traditions.
Dominique Mamberti is a leading figure within the Roman Catholic Church. Born in Morocco to French parents, he emerged as a significant Vatican diplomat before taking on the role of cardinal protodeacon in 2024. His appointment to this position means that Mamberti has the historic and highly visible task of publicly introducing the new pope with the famous "Habemus Papam" announcement from St. Peter’s Basilica.
His experience in Vatican diplomacy is vast. Before becoming the cardinal deacon, he held key positions, including head of the Holy See’s diplomatic section and head of the Apostolic Signatura—the Church’s highest canonical court. Mamberti’s tenure has been shaped by a commitment to efficient governance and unbiased leadership within the complex framework of the Vatican.
For a deeper look into his background, see Dominique Mamberti: Who is the cardinal deacon who will announce the new pope to the world? on Euronews.
The cardinal deacon’s core duty is to stand on the basilica’s balcony and proclaim the identity of the new pontiff. During the 2025 papal conclave, Dominique Mamberti performed this task with dignity, using the traditional Latin phrases that date back centuries.
The phrase “Annuntio vobis gaudium magnum: Habemus Papam!” resonates throughout the square. It is followed by the declaration of the new pope’s name and the chosen papal name. This moment, delivered by Mamberti, becomes etched in the memory of Catholics everywhere, signifying unity and renewal at the heart of the Church.
Real-time reporting of this historic moment, as well as Mamberti’s role, was covered in Papal conclave 2025 live updates: Cardinal Robert Francis Prevost named new pope, takes name Leo XIV on NBC News.
Mamberti’s influence in the Vatican grew steadily over the last decade. Not only did he manage significant diplomatic negotiations, but his work as chief judge of the Apostolic Signatura also gave him insight into the Church's inner workings. Colleagues often describe him as a bridge-builder, someone who avoids scandal and remains committed to the universal mission of the Church.
During the lead-up to the 2025 conclave, Mamberti was even mentioned as a potential candidate for the papacy. His strengths included an unbiased approach and an ability to rise above internal Vatican politics. For more analysis on his candidacy and influence, see Enter Cardinal Mamberti? on The Pillar.
In recent conclaves, the moment of the balcony announcement has merged ancient tradition with live global broadcasting. Mamberti’s clear voice and steady presence reassured millions watching live. His understanding of both media and tradition helps the Vatican maintain credibility in the digital age.
Mamberti’s capacity for quiet stewardship and skilled diplomacy will continue to shape not just Vatican ceremonies but also the broader direction of the Catholic Church in years to come.
Dominique Mamberti’s unique background in diplomacy, law, and ecclesiastical leadership makes him the ideal cardinal deacon for a Church rooted in tradition yet facing modern challenges. Whether ushering in a new pope or acting as a quiet force behind Vatican stability, Mamberti represents continuity and integrity. His presence at pivotal Church moments offers reassurance and hope for Catholics worldwide.