Source images IDS 25420 (Latin fair copy autograph, in secretary's hand, 16th-century)
Facsimile of the source from the collection of Muzeum Narodowe w Krakowie, Biblioteka Czartoryskich, 1618, p. 487-490 (435-438); copying, dissemination or publication in any form (including electronic) solely with prior written permission from the source's owner.