What is a pro Cathedral?

Question

What is a pro Cathedral?

Answer 1

A cathedral is a church building presided over by a bishop, and therefore the central church building of a diocese, an administrative unit of the larger church.

What makes a cathedral a cathedral is the presence of the bishop, not anything inherent in the building itself. Therefore, a church building may gain or lose cathedral status. Some cathedrals were built as cathedrals, but others were not. Church buildings that have lost cathedral status are called proto-cathedrals. In addition, a church building may serve temporarily as a cathedral, in which case it is termed a pro-cathedral.