At the recent meeting in the University Church about Anglicanorum coetibus, a jesuit canonist (I think his name may have been something like Orsy) said that he had searched and searched - but had been unable to discover another example of an ecclesiastical structure such as the "Ordinariates" being subject to a Roman dikastery.
Notoriously, we Anglicans know nothing about canon law. I don't, for example. And since I have a disinclination to be a laughing-stock, I tend to steer clear of subjects in which I do not feel confident ... such as canon law.
But I can't get it out of my mind that the bloke was wrong; because there is a very obvious ... and distinctly interesting ... example, of just such a phenomenon. Isn't there?
Before the "Restoration of the Hierarchy" in 1850, is it not true that the "Vicars Apostolic" who presided over the "Districts" of England were subject to the Sacred Congregation de Propaganda Fide?