A family named Guilguiffin appears in the annals of the area, but seems to die out in the 14th century. Guilllaume De Ty Varlen settled at Guilguiffin and had a significant fortified residence. Jean Louis Armand Fortuné De Plouec, born in 1694, replaced the ancient manorr with the current chateau between 1750 and 1760, using plans drawn up by the Quimper architect Nicolas Pochic. In 1797 the donjon, a lead-capped tower in the middle of the chateau, was razed. In 1847, 4 years later, the chapel collapses but is rebuilt within the same year. In 1965, the chateau was in desolate condition. In 1967, Philippe Davy immediately begins restoration of the property. Today Château de Guilguiffin provides accomodation services.
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.