Stemma di papa Gregorio XIII al secolo Ugo Buoncompagni 1581
<bdi><a href="https://en.wikipedia.org/wiki/en:Agostino_Carracci" class="extiw" title="w:en:Agostino Carracci"><span title="Bolognese painter of the Baroque (1557-1602)">Agostino Carracci</span></a>
</bdi>
Universitätsbibliothek Salzburg, G 71 III  (aus dem ehemaligen Wolf-Dietrich-Klebeband <i>Städtebilder</i>; alte Signatur: V.4.A.14); <a rel="nofollow" class="external text" href="http://www.ubs.sbg.ac.at/sosa/graphiken/graphikindex.htm">www.ubs.sbg.ac.at</a>