St. Lawrence's Church has a long and complicated history that goes back to sometime around the end of the 13th century. It is one of few medieval churches in Östergötland built entirely in brick, a circumstance which may be connected to there being a large number of German merchants active in Söderköping at the time, and it remains a fine Swedish example of Brick Gothic. The original church had the form of a basilica with a central nave and two aisles.
During a city fire in 1494 the church was damaged and subsequently rebuilt. An external belfry was erected in the 1580s. During its history, it has been reconstructed, renovated and altered on several occasions, but retains much of its medieval form and look. Externally, the church is dominated by its red brick façade, interspersed with blind arches and supported by brick buttresses. As it has no protruding apse, both the west and the east end of the church is marked by straight façades that end in crow-stepped gables. On the external wall of the vestry, St. Lawrence is depicted. During a renovation in 1965, an immured runestone was discovered and laid bare in one of the walls.
The interior today is a typical hall church, dominated by white-washed vaulting. Remains of medieval fresco painting has been laid bare during 20th-century restorations. The church also contains some noteworthy inventories, such as a late medieval altarpiece (possibly French), a triumphal crucifix (possibly made in Vadstena circa 1400), a processional crucifix from the 13th century and several medieval carved wooden statuettes of saints.
The church has been the venue for royal coronations in Sweden on two occasions. The first time was when Hedwig of Holstein, wife of Magnus III of Sweden, was crowned Queen of Sweden on 29 June 1281. The second was when Birger Magnusson and Martha of Denmark were crowned King and Queen of Sweden in the church in 1302.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.