St Elidyr's Church was the principal place of worship of the Cawdor family, former owners of the Stackpole Estate. The church has medieval origins, but most of the original structure, apart from the 12th or 13th century tower and part of the chancel, has been absorbed into later additions and renovations.
The church is built on a slope in a wooded valley, the slope partly excavated to accommodate the building. Cruciform in plan, the chancel is about 6.5 metres long by 4.5 metres wide. There are north and south transepts, a vestry and a chapel. There is an open porch to the south, within which there is an early medieval inscribed stone. There was a crypt beneath the chancel, now filled in. The roof is slate, and there is a wrought iron cross at its eastern end. The altar table is oak, as are the communion rails.
The tower is a prominent feature and an older part of the church. It is of a typical local design with a parapet, but unusually slender. The lowest storey has a vault opening into the north transept. Two upper floors and the roof are crudely constructed. Each storey has windows or louvred openings, the lowest being blocked. The top storey has louvred openings on all four sides and there is a spiral staircase.
A stone cross with a modern head stands in the churchyard.
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.