History:
Around 1670, under the initiative of the 2nd Earl of Torre and the first Marquis of Fronteira Dom João Mascarenhas, and of his wife Madalena de Castro, both the central body of the Palace and the Liberal Arts Terrace were finished. The couple had the panels of azulejos (Portuguese tiles) installed, which can still be seen decorating the walls and the façades of the palace. It was under their initiative that the architectural elements of the gardens were built – The “Knights Lake” and the “Kings Gallery”. The formal garden and its five fountains, the fountain of Venus, the Venus garden, the garden grotto, known as Casa do Fresco (lit. House of freshness), all the embrechados (rocaille decorations) and the three grottos behind the lake of the Knights date from this same period.
The place was originally built as a Summer residence. Although the date of the beginning of its construction is uncertain, it is a fact that in 1668, when Cosme III of Medici visited Portugal, it was almost finished. In 1673, when the first Marchioness of Fronteira died, an inventory was made which registers all the elements mentioned above. After the destruction of the family’s residence in downtown Lisbon during the 1755 earthquake, the Fronteira Palace was enlarged and became the main residence of the Mascarenhas family.
The Fronteira palace is still inhabited by the descendants of Dom João de Mascarenhas. This is one of the charms of the place, giving it a human, living atmosphere which makes it so special.