Charitable institutions attached to churches in Rome were founded right through the medieval period and included hospitals, hostels and others providing assistance to pilgrims to Rome from a certain "nation", which thus became these nations' national churches in Rome. These institutions were generally organised as confraternities and funded through charity and legacies from rich benefactors belonging to that "nation". Often also they were connected to national "scholae" (ancestors of Rome's seminaries), where the clergymen were trained. The churches and their riches were a sign of the importance of their nation and of the prelates that supported them. Up to 1870 and Italian unification, these national churches also included churches of the Italian city states (now called "regional churches").