1 Ducat - Ferdinand I Klagenfurt

Ferdinand I consolidated Habsburg control over the Austrian hereditary lands following his brother Charles V's abdication negotiations, and the Klagenfurt mint — capital of Carinthia — operated intermittently under direct archducal authority during the 1550s. These ducats were struck to the long-established Venetian ducat standard, which Habsburg mints across the region maintained deliberately to facilitate trade with Italian merchant networks.

Fr#42 is among the scarcer Klagenfurt gold issues; the mint's output was never high, and surviving examples in any grade are infrequently encountered at auction.