The University of Cambridge has trial access on campus only to the Biographisch-Bibliographisches Kirchenlexikon (BBKL) to April 12, 2018.
The link to the trial is here:
We regret that we cannot provide off campus access to this resource.
Please send your feedback on the encyclopedia to firstname.lastname@example.org. Thank you.
The BBKL is the largest ecclesiastical encyclopaedia worldwide, including more than 20.000 entries about deceased personalities of ecclesiastical history – in the area of theology, religion, philosophy, art history and related subjects.