Attribution-Share Alike 2.0 Generic license. Attribution: Inside St Gregory, Marnhull (XIII) by Basher Eyre You are free: to share – to copy, distribute and
English Pope GregoryXIII (Ugo Buoncompagni, 1502–1585, pope 1572), Promulger of the Gregorian Calendar - medal, medalist: Giovanni V. Melon (MET, 12.140