Roman Catholic Diocese of Adria-Rovigo
The Italian Catholic Diocese of Adria-Rovigo (), in the Triveneto, has existed under this name since 1986. It is a Latin suffragan to the Patriarchate of Venice. Its territory comprises roughly the northeastern Italian Province of Rovigo (Rovigo itself is not an episcopal see), and a part of one town in the Province of Padua. In 2015, in the diocese of Adria-Rovigo there was one priest for every 1,355 Catholics. Special churches. Its Cathedral episcopal see is the Cattedrale di SS. Pietro e Paolo dedicated to Saints Peter and Paul, in Adria, province  of Rovigo. It has a Co-Cathedral: Concattedrale di S. Stefano Papa e Martire Concattedrale dedicated to Martyr Pope Stephen I, in Rovigo, which never was a diocese. Furthermores, there are several Minor Basilicas : Ecclesiastical history. Tradition dates the preaching of the Gospel in Adria from the days of Saint Apollinaris, himself consecrated bishop by Saint Peter. The figure of this Bishop of Ravenna has a singular importance in the hagiographical legends of the northeast of Italy. Even if Emilia, Romagna and the territory around Venice were Christianized and had bishops (the two facts are concomitant) before Piedmont, for example , their conversion does not go back beyond the end of the second century. The first known bishop of Adria is Gallonistus, who was present at a synod in Rome (649) under Pope Martin I (Mansi, XII). The Venerable Bede's Martyrology mentions a Saint Colianus, Bishop of Adria, but nothing is known about him. Established in 640 AD as Diocese of Adria. Amongst the bishops of Adria is the Blessed Aldobrandinus of Este (1248-1352). Gained territory on 1818.05.01 from the Metropolitan Archdiocese of Ravenna, and exchanged territory with the Metropolitan Archdiocese of Ferrara Exchanged territory again on 1819.03.09 with  Diocese of Padova The diocese had in the early 20th century, for a population of 190,400: 80 parishes, 300 churches, chapels and oratories; 250 secular priests, 72 seminarians, 12 regular priests and 9 lay-brothers; 90 confraternities; 3 boys schools (97 pupils) and 6 girls schools (99 pupils). Renamed on 1986.09.30 as Diocese of Adria–Rovigo. Bishops. "(all Roman Rite) "(incomplete : first millennium mostly unavailable) Diocese of Adria. "Erected: 7th Century" "Latin Name: Adriensis" "Metropolitan: Patriarchate of Venice" Diocese of Adria-Rovigo. "Name Changed: 30 September 1986" "Latin Name: Adriensis-Rhodigiensis" "Metropolitan: Patriarchate of Venice" Roman Catholic Diocese of Adria