Documents, photographs, witness statements, films and all sources systematically collected by Porta Polonica are digitized and recorded in a database.
Fig. 2b: Dedication to the Polish king Sigismund II Augustus
John à Lasco/Jan Łaski: Forma ac ratio tota ecclesiastici Ministerii, in peregrinorum, potissimorum vero Germanorum Ecclesia instituta Londini in Anglia, Frankfurt am Main 1555, page 2