San Lanfranco is a Romanesque-style Roman Catholic church and former abbey. A paleochristian church at the site, dedicated to the Holy Sepulcher (Santo Sepolcro) was located near here, and the first documentation of a monastery here date to 1090. The monastery became associated with the Vallumbrosan Order, and hosted the bishop Lanfranco Beccaria, till his death in 1198. Pope Alexander III elevated Lanfranco to sainthood the next year. This church, which held his relics, was rebuilt starting about this time, and leading to consecration in 1236, with the bell-tower dating to 1237, and the facade to 1257. The small cloister was designed in 1476 by the architect Giovanni Antonio Amadeo. Amadeo also designed and sculpted the elements of the Arca di San Lanfranco which serves as funereal monument and tomb to the saint.
Located outside the walls of Pavia, the abbey was frequently requisitioned by armies besieging the town. Over the years a number of events, including floods and fires, damaged the church and abbey. Soon after 1782, the monastery was suppressed.
While the exterior of the church is mainly plain brick, the interior still contains frescoes from the 13th to 15th centuries. Among the most notable, is a fresco depicting the murder of St Thomas Becket, whose life had parallels with San Lanfranco. The remains of the small cloister include Romanesque carvings on the columns. The larger cloister has 15th century Renaissance style decorations in the capitals. The tomb of the Saint (Arca de San Lanfranco) was completed from 1498-1508 with designs by Amedeo, and is notable for the carved bas-reliefs by Amedeo and his followers depicting the life of the Saint.References:
The Petersberg Citadel is one of the largest extant early-modern citadels in Europe and covers the whole north-western part of the Erfurt city centre. It was built after 1665 on Petersberg hill and was in military use until 1963. It dates from a time when Erfurt was ruled by the Electors of Mainz and is a unique example of the European style of fortress construction. Beneath the citadel is an underground maze of passageways that can be visited on guided tours organised by Erfurt Tourist Office.
The citadel was originally built on the site of a medieval Benedictine Monastery and the earliest parts of the complex date from the 12th century. Erfurt has also been ruled by Sweden, Prussia, Napoleon, the German Empire, the Nazis, and post-World War II Soviet occupying forces, and it was part of the German Democratic Republic (East Germany). All of these regimes used Petersberg Citadel and had an influence on its development. The baroque fortress was in military use until 1963. Since German reunification in 1990, the citadel has undergone significant restoration and it is now open to the public as a historic site.