1 Ducat

Regensburg occupied a peculiar constitutional position in the Holy Roman Empire — as the permanent seat of the Reichstag from 1663 onward, it hosted the empire's perpetual diet while simultaneously exercising its own minting rights as a free imperial city. The 1737 ducat was struck roughly midway through that unbroken parliamentary session, which ran without interruption until Napoleon dissolved the empire in 1806.

The city's ducats consistently adhered to the high .986 fineness standard, making them reliable trade pieces trusted well beyond the city's modest territorial reach.