Source images IDS 18993 BCz, 247, p. 136, p. 136 (Latin office copy in secretary's hand) 
Facsimile of the source from the collection of Muzeum Narodowe w Krakowie, Biblioteka Czartoryskich, 247, p. 136; copying, dissemination or publication in any form (including electronic) solely with prior written permission from the source's owner.
