Editing Koblenz (section)

===Ancient era===
Around 1000 BC, early fortifications were erected on the [[Festung Ehrenbreitstein]] hill on the opposite side of the Rhine. In 55 BC, Roman troops commanded by [[Julius Caesar]] reached the Rhine and built a [[Caesar's Rhine bridges|bridge]] between Koblenz and [[Andernach]]. About 9 BC, the ''Castellum apud Confluentes'' was one of the military posts established by [[Nero Claudius Drusus|Drusus]].

Remains of a large bridge built in 49 AD by the Romans are still visible. The Romans built two forts as protection for the bridge, one in 9 AD and another in the 2nd century, the latter being destroyed by the [[Franks]] in 259. North of Koblenz was a temple of [[Mercury (mythology)|Mercury]] and [[Rosmerta]] (a Gallo-Roman deity), which remained in use up to the 5th century.