The archives, printed books and manuscripts detailed in the online databases are held in many different locations throughout Europe, each with different Access Policies.
Some institutions are dedicated archives or libraries with full time professional staff and facilities; others function primarily as education or administrative institutions, which do not have staff or resources to deal with unstructured enquiries or unannounced visitors.
Please contact each institution or visit their website for full details on facilities and access conditions.
If you wish to consult any item or request copies, this must be made in writing to the institution, which holds the material (the Catholic Heritage Project does not hold copies of any material).
If planning a research trip, you should make a request by email or in writing, with advance notice, to the institution with full details of intended research, and an estimation of when you might be able to visit.