Valdštejn Castle (Waldstein) is an early Gothic fortress near Turnov, in the Czech Republic. The city was built on three sandstone cliffs in the second half of the thirteenth century by Counts of the Waldstein family. After 1420 the castle was occupied by the Hussites, then later by robber barons. In 1621 the abandoned castle was bought back by the Waldsteins, whose most illustrious member was Albrecht von Wallenstein. During the peak of the Baroque period, they built a pilgrimage church, dedicated to John of Nepomuk, in 1722 on the ruins of the castle.References:
The Basilica of Santa Maria in Trastevere is one of the oldest churches of Rome. The basic floor plan and wall structure of the church date back to the 340s, and much of the structure to 1140-43. The first sanctuary was built in 221 and 227 by Pope Callixtus I and later completed by Pope Julius I.
The inscription on the episcopal throne states that this is the first church in Rome dedicated to Mary, mother of Jesus, although some claim that privilege belongs to the Basilica di Santa Maria Maggiore. A Christian house-church was founded here about 220 by Pope Saint Callixtus I (217-222) on the site of the Taberna meritoria, a refuge for retired soldiers. The area was made available for Christian use by Emperor Alexander Severus when he settled a dispute between the Christians and tavern-keepers.
The church underwent two restorations in the fifth and eighth centuries and in 1140-43 it was re-erected on its old foundations under Pope Innocent II.