1 Ducat - Frederick IV

Frederick IV of Schleswig-Holstein-Gottorp spent much of his reign in direct conflict with Denmark, which had absorbed the ducal portions of Schleswig following the Great Northern War — though in 1698 that war had not yet begun, and the duchy still operated as a functioning independent court with its own mint at Gottorf. He died at the Battle of Kliszów in 1702 fighting under Charles XII of Sweden, an alliance that ultimately cost the Gottorp line its territorial position entirely when Denmark seized the duchy in 1713.