Diocese of Frosinone-Veroli-Ferentino Archive (Archivio Diocesi di Frosinone-Veroli-Ferentino) (Italy)
The Italian Catholic Diocese of Frosinone-Veroli-Ferentino has existed since 1986. In that year, the Diocese of Ferentino was united into the Diocese of Veroli-Frosinone; which was the name of the historic Diocese of Veroli from 1956. It is immediately subject to the Holy See.