Cavalry support

[Gaivs Antonivs Satvrninvs]

Hi,all,and thanks for the responses thus far.

The reason I asked about Aalen was I have been to
the Limas museum there (and it's my wife's hometown).

Livius.org states that while a normal cavalry installation
was usually 500 strong, the fort at Aalen was home to 1000.
That made me wonder how much support personnel was required
for a cav unit. If everyone was in garrison it must have been a
city unto itself.
extra thanks to Volker Bach for having knowledge specific to
the area.