Remarkable fragmentary sculpture of Mithras slaying the bull on an inscribed altar found in Mithraeum III at Ptuj.
TNMM564 – CIMRM 1589, 1590
D(eo) S(oli) i(nvicto) M(ithrae) / pro (sa) salute /canaliclari / et actariorum /et codicarior(um) / et librariorum / leg(ionum) V M(acedonicae) et XIII g(eminae) / Gallienarum.
It is well known that Mithras was born from a rock. However, less has been written about the father of the solar god, and especially about how he conceived him.