This fragmented altar of a certain Caius Iulius Crescens, found in the Mithraeum of Friedberg, bears an inscription to the Mother Goddesses.
TNMM646 – CIMRM 1066
Matron/is / C(aius) Iul(ius) Cresce/nis (sic) pro / Respecto / v(otum) s(olvit) l(ibens) l(aetus) m(erito).