The Patriarchate of Venice (Latin: Patriarchatus Venetiarum), also sometimes called the Archdiocese of Venice, is a Latin Church ecclesiastical territory or patriarchal archdiocese of the Catholic Church in Venice, Italy. In 1451 the Patriarchate of Grado was merged with the Bishopric of Castello and Venice to form the Archdiocese of Venice. As a metropolitan see, the Patriarch of Venice is the metropolitan of the Ecclesiastical Province of Venice. Its suffragan dioceses include Adria-Rovigo, Belluno-Feltre, Chioggia, Concordia-Pordenone, Padova, Treviso, Verona, Vicenza, and Vittorio Veneto.