¼ Ducat - Charles Frederick

Charles Frederick inherited the Duchy of Schleswig-Holstein-Gottorp in 1702 at age two, meaning the duchy was administered by regents through the early 1710s — making the authority behind this 1711 issue a matter of regency governance rather than personal rule. The Gottorp dukes were perennially entangled in disputes with the Danish crown over Schleswig, a conflict that would eventually strip Charles Frederick of his Holstein territories entirely after the Great Northern War.

The Fr#3087 designation places this among Friedrich's gold reference for the German states, where Gottorp quarter ducats of this period are noted as scarce survivors of a financially strained administration.