Monumentum Mithraeum of Slăveni The Mithraeum of Slaveni was discovered in 1837 on the right bank of the river Olt, in Romanati district. The New Mithraeum4 Jun 2009Updated on 18 Jan 2022 Mithras petrogenia of 3 The full article is reserved for our members. Log in or create a free account to access the entire site. Discovered in 1837 in the village Slaveni, on the right bank of the river Olt, in Romanati district. Related monuments Mithras rock-born of Dobrosloveni The sculpture of Dobrosloveni, Romania, has a hole from where water flowed.