Bad Homburg v.d.H., Germany. A Roman auxiliary castellum 20 km S
of Frankfurt a.M. on the level of the Taunus mountain range,
near Bad Homburg v.d.H. During Domitian's war against the Chatti
(A.D. 83-85), the limes was constructed in the forefield of the
legionary camp Mogontiacum (Frontin. . 1.3.10). In stretches it
follows the ridge of the Taunus mountain range. Auxiliary troops
were stationed in castella on the limes to guard the frontier.
One of these castella was Saalburg; its ancient name is unknown.
The oldest fortification was a small wooden castellum (area 0.6
ha, constructed ca. A.D. 90); its garrison is not known. About
A.D. 135 cohors II Raetorum cR. (equitata?) was stationed here,
and at this time a larger castellum was built over the original
one. Its wall consisted originally of a peculiar wood and stone
construction. The interior buildings were of wood. During the
second half of the 2d c. a stronger wall of stone and mortar was
built. Some of the interior buildings also were rebuilt in
stone,