Justinus
Martyrological notice
The historical Roman Martyrology commemorates Justinus on 17 September. The Latin notice identifies the record as martyr and priest. The source places the commemoration at Romas, via Tiburtina.
Historical martyrology witness · Martyrologium Romanum (Latin historical edition)
Romas, via Tiburtina, natalis sancti Justini, Presbyteri et Martyris; qui, in persecutione Valeriani et Gallieni, ob confessionis gloriam fuit insignis. Hic beati Pontificis Xysti Secundi, Laurentii, Hippolyti aliorumque plurimorum Sanctorum corpora sepelivit, ac demum, sub Claudio, martyrium consummavit.