Note: Do not rely on this information. It is very old.
Andernach
Andernach, an ancient town situated between Coblentz and Bonn, on the left bank of the Rhine, in Rhenish Prussia. It was once a Roman fort, and then the residence of the Merovingian kings. The Emperor Charles I. was defeated here by his nephew, Louis of Saxony, in 876. The ruins of the castle of the Archbishop of Cologne and traces of the old wall and gates still exist. The volcanic soil of the neighbourhood gives a supply of millstone grit and of hydraulic cements, in which a good trade is done.