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Monumentum

Altar at Caseggiato di Diana

This altar was originally consecrated to Hercules and was rededicated to Mithras by Callinicus in the Mithraeum of the House of Diana.
The altar and aedicula in the northern room, seen from the south.Ostia-antica.org / Klaus Heese
 
The New Mithraeum
31 Jan 2023
Updated on May 2026

TNMM 582 ↔ CIMRM 219 & 220

Marble altar (H. 0.78 Br. 0.35 D. 0.44), standing before the cult-niche.

The altar has a hole in the middle, which pierces the marble completely. At the front the opening is surrounded by a wreath of oak-leaves with flying ribbons. An inscription over it (No. 220).

CIMRM 220

CIL XIV 4310

M. Lollianus / Callinicus pater / aram deo / do(num) de(dit).

Callinicus: compare Nos. 222; 223.

The altar, as an inscription (CIL XIV 4280) proves, was originally dedicated to Hercules. From a thorough investigation by G. Becatti it has become clear, that the Mithraists after changing it into a Mithras-altar, have turned it upside down with the inscription of Hercules against the wall of the cult-niche. This they did, because the upper part of the altar was broken off and had been lost. This is an established fact as that part was found back in 1940. The wreath of oak-leaves already was on the altar, but Callinicus had the two ribbons added and at the same time the altar was pierced, which caused some damage to the Hercules-inscription.

CIL XIV 4310

M. Lollianus / Callinicus pater / aram deo / do[num] de[dit].

References

Calza o.c. 331; Becatti in BCR LXVII 1939 38 n. 10; BCR LXX 1942 120f. with fig.

Related monuments

Fragment with inscription to Arimanius Casa di Diana

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Inscriptions of Caseggiato di Diana

This marble slab found near the Casa de Diana in Ostia bears two inscription with several names of brothers of a same community

Graffito from the Mitreo del Cassegiato di Diana

This graffito seems to be an account of offerings made by Mithras worshippers in the Cassegiato di Diana.

Hermae of the Mitreo del Caseggiato di Diana

A bearded Bacchus and another hermes as a woman, both crowned with vine tendrils, were walled into the base of a niche.

 

Graffito of the Mitreo del Caseggiato di Diana

In the cult niche of the Mitreo del Caseggiato di Diana there is a list of words that could indicate names and measurements.

 
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