ROME-RUTHENIA, 21 October 2026 (NRom)
H.E. Msgr Sergio Oscar Alunni has been incardinated into the Diocese of Rome-Ruthenia of the United Roman-Ruthenian Church, where he will serve as an Auxiliary Bishop. He has also been received as a Capitular Bishop within the Patriarchal Chapter of the Pontifical Court.
The Diocese of Rome-Ruthenia is the central diocese of the Holy Apostolic See and the particular Church entrusted directly to the Roman-Ruthenian Pope as diocesan bishop. The Patriarchal Chapter, also known as the Pontifical Order of St Stephen, is the senior body of the Pontifical Court, whose members advise and support the ministry and governance of the United Roman-Ruthenian Church.
In addition to his ecclesiastical service, Bishop Alunni holds the noble title of Count de Isclés within the Royal House de Riboalte, where he also serves as a member of the Chamber of the Council and Major Chaplain of the House (miembro de la Cámara del Consejo y Capellán Mayor de la Casa).
Based in Argentina, Bishop Alunni has also pursued a longstanding professional vocation in healthcare, with extensive experience in nursing, neonatal and paediatric care, healthcare education, and professional formation. His academic background includes master's-level and doctoral studies undertaken over many years at universities and academic institutions in Argentina, France, Spain, and the United States.
His incardination into the Diocese of Rome-Ruthenia and the Patriarchal Chapter brings together his ecclesiastical ministry, academic formation, healthcare service, and longstanding commitment to public and pastoral life within the wider international mission of the United Roman-Ruthenian Church.
