Documents, photographs, witness statements, films and all sources systematically collected by Porta Polonica are digitized and recorded in a database.
Fig. 3: Purgation epistle
John à Lasco/Jan Łaski: Purgatio ministrorum in ecclesiis peregrinorum Francofurti eorum calumnias, qui ipsorum doctrinam, de Christi Domini in Coena sua praesentia, dissensionis accusant ab Augustana...