The design was influenced by Romanticism and Mudéjar Moorish Revival architecture with neo-Gothic elements. The eclecticism is a fine example of the Sintra Romanticism, along with other nearby palácios, such as the Pena Palace and the Quinta do Relógio. The Islamic architectural influence is in reference to when the region was a part of the wider Muslim Gharb Al-Andalus until the 13th century.
