Laufen Castle is a square-shaped castle overlooking the Salzach river that was built for the Archbishop of Salzburg in the 15th century. It is assumed to be built on the ruins of an ancient Roman structure and was first mentioned in the reign of Bishop Vergilius of Salzburg, and once again in the 13th century. On March 29, 1166, Emperor Barbarossa held court here.
During World War II the castle was used first as a prisoner-of-war camp for officers, Oflag VII-C. Then In May 1942 the officers were transferred to another camp, and the castle was used as an internment camp Ilag VII housing some hundreds of men deported from the Channel Islands of Jersey and Guernsey and some American civilians that had been caught in Europe by the declaration of war by Germany on the United States on 11 December 1941.
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.