The island remained unused for about 100 years until, in 1793, the Prussian king Frederick William II, a descendant of Frederick William I, acquired the island and had the Pfaueninsel castle built for himself and his mistress Wilhelmine Enke in 1794–97. The small "Lustschloss" was placed on the western tip of the island, visible from the king's residence at the Marmorpalais in Potsdam. It was designed as a summer residence for the King by Johann Gottlieb Brendel. Around it an English garden was created, including a dairy shaped like a gothic revival church on the other end of the island. One of the garden designers was Johann August Eyserbeck who died in 1801. In 1804, Ferdinand Fintelmann took over as royal gardener.