¾ Ducat - Frederick William

Frederick William — the "Great Elector" — issued this coin during the aftermath of the First Northern War, a period in which Brandenburg-Prussia was being pulled between Swedish and Polish demands for military alliance and territorial concession. The ¾ ducat denomination itself is an oddity, almost certainly struck as a presentation or donative piece rather than for general circulation; fractional ducats of this specific weight cut were rarely produced for everyday trade and more often appeared as gifts or gratuities at court.

KM#286 is sparsely documented in auction records, which aligns with its probable function as a limited donative issue from the Brandenburg mint at that time.