While the oldest parts of Havdhem Church have been identified as being from the first half of the 12th century, graves dating from the period of the arrival of Christendom to Gotland (11th century) have been discovered in the cemetery. The choir is the oldest part of the church itself. It shows resemblances with the churches of Garde and Källunge. The choir portal is however later, from the 13th century. The nave dates from circa 1200 but was originally both lower and somewhat shorter. It was possibly enlarged in 1580, following a fire that devastated the church. The apse was added to the choir at approximately the same time as the nave was built. It displays similarities with a now ruined church in Visby, St. Drotten. The church tower dates from the middle of the 13th century and was originally slightly higher. It replaced an earlier, smaller tower.
Internally, the apse retains a few fragments of frescos displaying Byzantine influences. The altarpiece dates from 1667 and the pulpit from 1679, while the baptismal font is from 1685. The triumphal cross is a work from the 15th century.
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.