Marcianus and Companions

Marcianus and Companions were martyrs at Tomis, the Black Sea city on the site of present-⁠day Constanța, saints of the undivided Church.

The Syriac Martyrology of 411 commemorates them twice. The first time, on 5 June, by the Julian calendar (old style), Marcianus and three other martyrs are named at Tomis. The second time, on 10 July, Marcianus is named again, together with forty-⁠seven others. For the second commemoration the Latin Hieronymian Martyrology gives the names Marcianus, Doranus, Diomedes, John, Sisinnius, Aurelian and Aemilian, with thirty-⁠nine others. No other account of their lives or deaths survives.