Like the predecessor building, which was built in the mid-11th century as Burg im Fischerhölzli, it served as a customs house and that to secure the area, where the goods were transferred to evade the Rheinfall.

The term "Schlupf-Lehn" derives from the Swiss German word for "slide out", as the feudal hereditary could be revoked if the administrator did not meet its obligations to the monastery.

[2] The former customs station and Salmon farming was converted in the tourism promotional restaurant «Caffé- und Speisewirtschaft Schlösschen Wörth», that was opened on 2 February 1837 (Candlemas).

The castle was mentioned in the diary of Goethe on 18 September 1797,[2] Schlösschen Wörth: Ich ging hinein, um ein Glas Wein zu trinken.

Alter Eindruck bey Erblickung des Mannes ... Goethe asked the custodian (Gertzler) about his work and documented the then conditions.