The Villa Floridiana dates from 1816 when Ferdinand I of the House of Bourbon, King of the Two Sicilies, acquired the property. Between 1817 and 1819 the architect Antonio Niccolini reconstructed the building and the surrounding gardens. The director of the Botanical Gardens, Friedrich Dehnhardt, planted oaks, pines, palms, cypresses and a large selection of flowers in the gardens.
The King then donated the property as the site for a vacation residence to his morganatic wife, Lucia Migliaccio Partanna, duchess of Floridia, from which the villa has taken its name. The neoclassical residence and surrounding gardens were built between 1817-19. The Villa currently houses the National Museum of Ceramics, Naples.
References:Sigmaringen Castle was first mentioned in the year 1077 in the chronicles of Petershausen monastery. The oldest parts of the castle are concealed beneath the alterations made during the 17th and the 19th centuries. The secret of the earliest settlement built on this defendable rock will never be fully revealed: large-scale excavation work would be necessary, which the extensive land development renders impossible. Judging from the many Roman remains unearthed in the area around Sigmaringen, the 12th century keep known as the 'Roman Tower' could be traced back to a Roman predecessor.
The castle remains that have been preserved (gate, great hall and keep) date back to the Staufer period around 1200. The castle remains were integrated into subsequent buildings. The foundations of the castle buildings are to a large extent identical to the surrounding castle wall.
These remains give us a good idea of how the castle might have looked during the 12th century.