Territorial prelate

A territorial prelate is, in Catholic usage, a prelate whose geographic jurisdiction, called territorial prelature, does not belong to any diocese and is considered a particular church.

The territorial prelate is sometimes called a prelate nullius, from the Latin nullius diœceseos, prelate "of no diocese," meaning the territory falls directly under the 'exempt' jurisdiction of the Holy See (Pope of Rome) and is not a diocese under a residing bishop.

The term is also used in a generic sense, and may then equally refer to an apostolic prefecture, an apostolic vicariate, a permanent apostolic administration (which are pre-diocesan, often missionary, or temporary), or a territorial abbacy (see there).