Monumentum Mithraeum V of Aquincum The fifth mithraeum from Aquincum has been found in the house of a military tribune. Altar of LibellaThe New Mithraeum / Andreu Abuín (CC BY-SA) The New Mithraeum9 Feb 2022Updated on Feb 2022 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.