Source images IDS 14720 GStA PK, XX. HA Hist. StA Königsberg, HBA, C 1, No. 628, f. 1r (Latin, German fair copy autograph, in secretary's hand, author's signature, 16th-century)
Facsimile of the source from the collection of Geheimes Staatsarchiv Preussischer Kulturbesitz, XX. HA Hist. StA Königsberg, HBA, C 1, No. 628; copying, dissemination or publication in any form (including electronic) solely with prior written permission from the source's owner.