Giulio 'Paolo' - Guidobaldo II

Guidobaldo II della Rovere ruled Urbino through a period of precarious balance between papal authority and Spanish imperial patronage — he ultimately secured his position by commanding papal troops and cultivating Philip II, to whom he sent his famous collection of majolica. The giulio was the workhorse denomination of central Italian silver coinage, introduced by Julius II (hence the name) and widely imitated across the smaller signorie of the region.

The CNI XIII range of 6–33 reflects a significant number of die varieties accumulated across a 36-year reign, a span long enough that multiple mint personnel and engravers left their mark on the type.