St Michael and All Angels stands outside the village of Castlemartin, adjacent to two holy wells which may indicate the site held religious significance in pre-historic times. A cross, dating from the 7th–9th centuries, was discovered embedded in the church wall in 1922, but has subsequently been lost. The main body of the current building dates from the 13th century, although the centrally-placed tower is later, of the 14th or 15th centuries. The church was restored, firstly in the early 19th century, and again in 1858.
The church has some notable Victorian stained glass from the studios of Hardman & Co. and Heaton, Butler and Bayne. A Hardman window of the Crucifixion, to a design by Augustus Pugin, has been described as the best example of Pugin's work of any church in Wales. The church contains a First World War memorial commemorating three men from Castlemartin who were killed in the conflict. The church was declared redundant in the early 21st century and is now in the care of the Friends of Friendless Churches.
St Michael's is a Grade I listed building. The adjacent vicarage, now derelict, and a mounting block in the churchyard have their own listings.
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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.