A Pro-cathedral is a parish church that's temporarily serving as the cathedral or co-cathedral of a diocese. In Ireland, the term is used to specifically refer to St Mary's Pro-Cathedral in Dublin, the episcopal seat of the Catholic Archbishop of Dublin and Primate of Ireland since the Reformation, when Christ Church Cathedral and St. Patrick's Cathedral became part of the Church of Ireland. In Qu'Appelle, Saskatchewan, the parish church of Saint Peter's was the pro-cathedral for the Anglican so… (More on Pro-cathedral)