⅛ Ducat - Vincent I

Vincent I of Gonzaga came to the Duchy of Mantua in 1587 carrying debts his father Guglielmo had deliberately structured to constrain him, and his reign was marked by relentless fiscal pressure despite — or perhaps because of — his appetite for war, art patronage, and court spectacle. Fractional gold of this denomination served real transactional needs in late sixteenth-century Mantua, but issues this small were extraordinarily vulnerable to loss and to the melting pot when bullion was needed urgently.

At 0.42 g, survival rates are predictably low. The Friedberg 546 attribution covers a tight series with limited die variation documented.