In persona episcopi

In persona episcopi (In the person of the bishop) is a Latin expression used by the Roman Catholic Church to indicate a union of two or more dioceses in which the dioceses are administered by a single bishop but undergo no alteration to their diocesan structures (e.g. seminaries, cathedrals, curia officials). In its mildest form such a union can be temporary, but in other cases it can be an intermediate step towards a union aeque principaliter or a full union.

Examples

 * Canada: Moosonee and Hearst
 * Great Britain (Wales): Cardiff and Menevia
 * Ireland: Clonfert and Galway, Kilmacduagh and Kilfenora
 * Spain: Huesca and Jaca
 * United States: Baltimore and Washington (1939–1947)