With Tuesday’s nominations, the pope changed the No. 2 positions in dicasteries for which he appointed the top officials earlier this year.
Pope Leo XIV continues to make changes to the leadership of the Roman Curia with new appointments to the No. 2 position in two key dicasteries: the Dicastery for Legislative Texts, responsible for promoting and ensuring the proper application of canon law in the Latin and Eastern Churches, and the Dicastery for the Service of Charity, tasked with channeling resources for the charitable work of the Holy Father.
The Vatican announced June 30 that the pontiff appointed Bishop Marco Mellino secretary of the Dicastery for Legislative Texts. He has been serving as adjunct secretary of the same office.
Leo also appointed Father Lucio Adrián Ruiz secretary of the Dicastery for the Service of Charity; he previously served as secretary of the Dicastery for Communication.
In addition, the Holy Father named layman Massimo Ralli, who was working as an official in the charity dicastery, to serve as its undersecretary. Both Ralli and Ruiz will undertake their new roles starting Sept. 1.
Mellino, 59, had previously served as secretary of Pope Francis’ Council of Cardinals. He was ordained a priest in 1991 and has also worked in the Secretariat of State. Since 2022, he had also served as secretary of the Interdicasterial Commission for the Revision of the General Regulations of the Roman Curia.
Ruiz was born in Argentina in 1965 and ordained a priest in 1990. He has extensive experience in ecclesial communications and new technologies. He holds a master’s degree in business administration and a doctorate from the Polytechnic University of Madrid. Over the course of his career, he has held various positions, including IT adviser to the Argentine Bishops’ Conference and an official of the Congregation for the Clergy. He has also been head of the Vatican Internet Services office, a professor at the Pontifical University of the Holy Cross in Rome, and president of the Nuestra Señora de Guadalupe Center.
The role of secretary in the Vatican structure
The role of secretary — the No. 2 position after prefect — is central in the Vatican dicasteries, involving directing the day-to-day operations and coordinating the technical and administrative work.
With Tuesday’s appointments, the pope continues to change the intermediate officials in dicasteries for which he appointed the top leaders earlier this year. In March, Leo named Archbishop Anthony Randazzo, then-bishop of Broken Bay, Australia, as prefect of the Dicastery for Legislative Texts. He also appointed Spanish Archbishop Luis Marín de San Martín as papal almoner — that is, head — of the Dicastery for the Service of Charity.
2 women prefects appointed by Leo
Among other recent moves, the pope transferred Archbishop Filippo Iannone, then-prefect of the Dicastery for Legislative Texts, to head the Dicastery for Bishops, in September 2025. In March, Leo XIV appointed Canadian Archbishop Petar Rajič as the new prefect of the Pontifical Household, the office of the Roman Curia responsible for organizing the pope’s schedule, audiences, and ceremonies.
He also appointed two women to head different dicasteries: On June 2, he named María Montserrat Alvarado, president and chief operating officer of EWTN News, as prefect of the Dicastery for Communication. In addition, on June 30, Leo appointed Salesian Sister Alessandra Smerilli as prefect of the Dicastery for Promoting Integral Human Development.
New members and consultors of the Dicastery for Evangelization
The pope on June 30 also appointed new members and consultors to the Dicastery for Evangelization in its Section for First Evangelization and New Particular Churches in a move that strengthens the missionary and universal character of this key body of the Roman Curia.
Among the new members are prominent cardinals and bishops from different regions of the world, reflecting the global dimension of evangelization.
Appointed members were Cardinals Thomas Aquino Manyo Maeda, archbishop of Osaka-Takamatsu, Japan; Fridolin Ambongo Besungu, archbishop of Kinshasa, Democratic Republic of Congo; Jean-Marc Aveline, archbishop of Marseille, France; and Frank Leo, archbishop of Toronto in Canada.
Along with them, the pontiff added several archbishops and bishops as members, including Alfred Adewale Martins of Lagos, Nigeria; Angelo Vincenzo Zani, archivist and librarian emeritus of the Holy Roman Church; Paolo Giulietti, archbishop of Lucca, Italy; Andrew Nkea Fuanya, archbishop of Bamenda, Cameroon; and Peter Chung Soon-taick, archbishop of Seoul, South Korea.
Also part of this group are Michel Jalakh, secretary of the Dicastery for the Eastern Churches; Paulus Budi Kleden, archbishop of Ende, Indonesia; Oscar Roberto Domínguez Couttolenc, archbishop of Tulancingo, Mexico; Elias Frank, archbishop of Calcutta, India; Daniel Ernest Flores, bishop of Brownsville, Texas; and Lisandro Alirio Rivas Durán, bishop of San Cristóbal, Venezuela. They are joined by Monsignor Roger Joseph Landry, national director of the Pontifical Mission Societies in the United States, and Father Francesco Rapacioli, superior general of the Pontifical Institute for Foreign Missions.
At the same time, Leo XIV appointed as consultors of the same dicastery Davide Carbonaro, archbishop of Potenza-Muro Lucano-Marsico Nuovo, Italy, and François Sylla, archbishop of Conakry, Guinea. Completing the list are Father Remigio Bellizio, director of the Domus Missionalis in Rome, as well as Father Joseph Koonamparampil and Father Wenceslaus C. Madu, both members of the Claretian Missionaries.
This story was first published by ACI Prensa, the Spanish-language sister service of EWTN News. It has been translated and adapted by EWTN News English.
