N. Donnelly has written:

'A short history of some Dublin parishes' -- subject(s): Catholic Church, Church history, History, Parishes, Roman Catholic Church, Irish Local History

'Short histories of Dublin parishes' -- subject(s): Catholic Church, Church history, History, Parishes

There is no "Roman" Catholic Church: Roman is an epithet first commonly used in England after the protestant revolt to describe the Catholic Church. It is rarely used by the Catholic Church. The Chaldean Catholic Church is part of the Catholic Church.

The Roman Catholic Church is a type of Christian Church.

First of all, there is no "Roman" Catholic Church. It's just Catholic, not Roman Catholic. Roman is an epithet first commonly used in England after the protestant revolt to describe the Catholic Church. It is never used by the official Catholic Church. Secondly, ever diocese is a particular Church, if you are just asking about the Pope, or the Bishops in Spain, then you will have to ask that question. Finally, history records that the explorers in the new world, brought the Church with them, in the person of priests and friars, and the "Church" fully supported them in this.

You would use the phrase Roman Catholic Church as a noun, because it's a name. For example, "The Roman Catholic Church is headquarted in Vatacin City" or "John is a member of the Roman Catholic Church". Tip: there is no Roman Catholic Church. It is the Catholic Church.