The Mithraeum of Lucretius Menander was installed in the early 3rd century in an alley to the east of a Hadrianic building named after the solar god temple.
TNMM6 – CIMRM 224
Deo Invicto Mithrae / Diocles ob honorem / C. Lucreti Menandri / Patris / D(ono) D(edit) D(edicavit).
The Mackwiller Mithraeum was built in the middle of the 2nd century, during the reign of Antoninus the Pious, on the site of a spring already worshipped by the natives.