1 Ducato - Felipe I 'Pataccone'

Felipe I — Felipe II of Spain, ruling Naples as Felipe I — issued this heavy silver ducato during his brief period as co-regent under Charles V before the abdication of 1556 formalized his sole rule. The "Pataccone" nickname, applied broadly to large Spanish-affiliated silver pieces in Italian circulation, stuck to this type through centuries of trade use in the Mediterranean. Naples under Felipe was a viceregal economy feeding silver northward to Habsburg war finance, and these large-module coins moved bullion as much as they facilitated local commerce.

The MIR 158 attribution places this among the rarer Neapolitan ducati of the period — the two-year window tightens surviving examples considerably.