Monumentum Mithräum II von Köln A second Mithraeum was found in Cologne described by R. L. Grodon as of 'small importance'. Votive inscription dedicated to Mithras by Tiberius Claudius RomaniusCarole Raddato Petrogeny relief of CologneCarole Raddato The New Mithraeum24 Aug 2021Updated on 9 Nov 2022 The full article is reserved for our members. Log in or create a free account to access the entire site. It was built in the cellar of a private house near other substantial houses of the second half of the 2nd century AD. The only inscription (#23) is by a veteran, legion unknown.