Due to its strategic position, the Sobroso castle was known as 'the key of the Kingdom of Galicia'. The name of the Castle, and the village itself, comes from the Latin SUBEROSUM, in reference to the 'sobreiras', Quercus suber or cork trees that once surrounded it.
The oldest reference to Sobroso Castle dates back to 1096. The castle that stands today dates back to the 14th or 15th century construction consisting of 2 enclosures. The outer one is irregular and the entrance is made through a drawbridge, and the inner one is rectangular with its keep on its weakest side.
In the 15th century, Sobroso Castle saw the fight between the Sarmientos and Pedro Madruga, but after that the castle wasn't much active.
The castle was restored from its ruinous state thanks to the efforts of local journalist Alejo Carrera Muñoz, who in 1923 bought the ruins of the castle from the Count of Torre Cedeira. He carried out the restoration work single-handedly, without any help from local authorities, until his death in 1967. In 1981, the neighbouring municipality of Ponteareas purchased the castle from Carrera's only child, Zita Teresa Carrera Ferreira, for 30 million pesetas. From 1995 onwards, the local council began their own restoration work on the castle.
The castle currently houses a cultural and ethnographic museum.
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.