1 Giulio - Marcellus II

Marcellus II reigned for twenty-two days in April 1555 — one of the shortest pontificates on record — dying before his coronation tiara had barely cooled. That he struck coinage at all is remarkable; the Ancona mint, operating with some autonomy from Rome, appears to have moved quickly enough to produce issues before news of his death halted production. The result is among the rarest papal series by any measure of reign length.

Surviving pieces are few, and attribution disputes between Munt#6 and Munt#7 typically hinge on minor die differences rather than distinct emissions.