Marcus
Martyrological notice
The historical Roman Martyrology commemorates Marcus on 28 September. The Latin notice identifies the record as martyr. The source places the commemoration at Antiochiae Pisidiae.
Historical martyrology witness · Martyrologium Romanum (Latin historical edition)
Antiochiae Pisidiae sancti Marci Martyris, pastoris ovium; itemque commemoratio sanctorum Alphii, Alexandri et Zosimi fratrum, Niconis, Neonis, Heliodori et triginta militum, qui, cum ad miracula beati Marci credidissent in Christum, diversis in locis ac diebus variisque modis martyrio coronati sunt.
Martyrologium Romanum · Latin witness
Antiochiae Pisidiae sancti Marci Martyris, pastoris ovium;