Oelsnitz, Vogtland, Germany
c. 1200
Insel Neuwerk, Germany
1300-1310
Lambrecht, Germany
c. 1330
Liebstadt, Germany
13th century
Stromberg, Germany
11th century
Hollfeld, Germany
13th century
Heimenkirch, Germany
1480-1490
Langerwehe, Germany
12th century
Coburg, Germany
14th century
Weigenheim, Germany
13th century
Altensteig, Germany
12th century
Lauchheim, Germany
12th century
Unsleben, Germany
12th century
Hemer, Germany
1353
Bederkesa, Germany
12th century
Eberbach, Germany
13th century
Friesenhagen, Germany
1550
Annweiler, Germany
12th century
Lennestadt, Germany
1202-1225
Pockau-Lengefeld, Germany
c. 1200
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.