|c14th manuscript of the Golden Legend|
SS Primus and Felician were brothers martyred around 297 under Diocletian. Patrician converts, they devoted themselves to serving the poor and prisoners. When they refused to sacrifice to the gods, they were tortured and subsequently beheaded.
Their relics were translated to the Basilica of St. Stephen in the Round on the Celian Hill in 648, where they remain today.