The Palace of the Marquesses of Fronteira was built in 1671 as a hunting pavilion to Dom João de Mascarenhas, 1st Marquis of Fronteira, who received his title from King Afonso VI of Portugal for his loyalty to the House of Braganza in the Portuguese Restoration War.
The house and the garden have glazed tiles representing different themes such as battles or monkeys playing trumpets. The Room of the Battles has panels representing scenes of the Portuguese Restoration War; one of them shows D. João de Mascarenhas fighting a Spanish general. The dining room is decorated with portraits representing some members of the Portuguese nobility, painted by artists such as Domingos António de Sequeira.
The chapel, dating from the end of the 16th century, is the oldest part of the palace. The façade is adorned with stones, shells, broken glass and porcelains. It seems that those pieces were used during the palace’s inauguration and were broken on purpose just not to be used again.
In spite of being the current residence of the Marquis of Fronteira some of the rooms, the library and the garden are open to public visits.
The palace garden, an area of 5,5 hectare, is adorned with Portuguese tiles with pictures that represent the different arts as well as mythological figures. The garden hedges are cut in order to represent the different year seasons. There is also a stone staircase which leads to a wall line with busts of the Kings of Portugal.
References:The Clementinum is a historic complex of buildings in Prague. Until recently the complex hosted the National, University and Technical libraries, the City Library also being located nearby on Mariánské Náměstí. The Technical library and the Municipal library have moved to the Prague National Technical Library at Technická 6 since 2009. It is currently in use as the National Library of the Czech Republic.
Its history dates from the existence of a chapel dedicated to Saint Clement in the 11th century. A Dominican monastery was founded in the medieval period, which was transformed in 1556 to a Jesuit college. In 1622 the Jesuits transferred the library of Charles University to the Klementinum, and the college was merged with the University in 1654. The Jesuits remained until 1773, when the Klementinum was established as an observatory, library, and university by the Empress Maria Theresa of Austria.