Ala, Sweden
12th century
Umeå, Sweden
1501-1508
Söderköping, Sweden
13th century
Botkyrka, Sweden
12th century
Havdhem, Sweden
12th century
Götene, Sweden
12th century
Anderslöv, Sweden
c. 1100
Hemse, Sweden
12th century
Linde, Sweden
12th century
Botkyrka, Sweden
1176
Stockholm, Sweden
12th century
Fide, Sweden
13th century
Stockholm, Sweden
1175-1200
Borlänge, Sweden
14th century
Alnö, Sweden
12th century
Trelleborg, Sweden
c. 1250
Kräklingbo, Sweden
1211
Träkumla, Sweden
13th century
Vall, Sweden
13th century
Katthammarsvik, Sweden
13th century
Ehrenbreitstein Fortress was built as the backbone of the regional fortification system, Festung Koblenz, by Prussia between 1817 and 1832 and guarded the middle Rhine region, an area that had been invaded by French troops repeatedly before. The fortress was never attacked.
Early fortifications at the site can be dated back to about 1000 BC. At about AD 1000 Ehrenbert erected a castle. The Archbishops of Trier expanded it with a supporting castle Burg Helferstein and guarded the Holy Tunic in it from 1657 to 1794. Successive Archbishops used the castle's strategic importance to barter between contending powers; thus in 1672 at the outset of war between France and Germany the Archbishop refused requests both from the envoys of Louis XIV and from Brandenburg's Ambassador, Christoph Caspar von Blumenthal, to permit the passage of troops across the Rhine.