The Savoy Castle is an 18th century baroque style castle located in Ráckeve, Hungary. Construction of the spacious home was begun in 1702 at the commissioning of Prince Eugene of Savoy and finished in approximately 1722. Prince Eugene of Savoy acquired Csepel Island in 1698, and thereafter began the planning process of this "maison de plaisance". Eugene commissioned Johann Lucas von Hildebrandt, a student of the Roman Carlo Fontana to design the castle. Seven letters from Hildebrandt to the prince remain in the archives of the Gonzaga family in Mantua and evidence planning and construction information about the castle. The castle has side-wings which were completed in 1714 and the whole construction process was finished in around 1720 to 1722. The prince did not actually reside in Ráckeve mansion after it was finished and, following his death, the estate was appropriated by the Crown.
Under the reign of Maria Theresia of Austria, the mansion and the adjoining land in Csepel was managed by the Hungarian Chancery. In 1814 the middle part of the mansion, along with the stately Baroque cupola, was destroyed by fire; what is seen today was rebuilt after the fire. Until its reconstruction in the 1980s the mansion suffered constant decline. The castle has enjoyed renovation and revitalization and is presently used as a hotel.