Monumentum Mithraeum of Aquincum V The fifth mithraeum from Aquincum has been found in the house of a military tribune. The New Mithraeum9 Feb 2022Updated on 10 Feb 2022 Altar of LibellaThe New Mithraeum / Andreu Abuín (CC BY-SA) The full article is reserved for our members. Log in or create a free account to access the entire site. An inscription and six altar stones were found in situ at the Mithraeum V of ancient Aquincum, Óbuda, Budapest. The sanctuary was installed during a renovation that took place during the Severan period. Related monuments Altar of Libella, Budapest The dedicant of this altar to the god Arimanius was probably a slave who held the grade of Leo. Altar from Aquincum by Castinus This altar to Mithras is dedicated by a certain Gaius Iulius Castinus, legate prefect of the emperors.