Für die Erforschung von Buchprovenienzen vielleicht von Belang:

http://dbgw.finlit.fi/henrik/henrik_english.php

"HENRIK is a relational database consisting of eleven different tables. Books notated in estate inventory deeds and auction protocols are given in separate tables, as is data about auctions, estate inventories and persons. Main information about books and persons are given in the search result. "