The holy Martyrs contested for piety's sake during the reign of Diocletian (284-305), when Urban was Governor of Caesarea of Palestine.
Urbanus, the governor of the region, observed a pagan festival by having some Christians publicly tortured and executed: some by fire, others on the gallows, some by being thrown to wild beasts in the arena.
When Urban commanded that together with the heathen festival, certain condemned Christians be publicly cast to wild beasts, Timolaus, a native of Pontus, Dionysius of Tripolis in Phoenicia, Romulus of Diospolis, Plesius (or Paisius) and Alexander from Egypt, and another Alexander from Gaza, seeing the patience and serenity with which the Christians endured their torments, were reached by the Holy Spirit, tied their own hands and presented themselves to Urban when the exhibition was about to begin, professing their faith in Christ; they were immediately cast into prison.
A few days later Agapius (the only baptized Christian amongst these youths) and Dionysius also presented themselves. All were beheaded together at Caesarea. Their martyrdom is recorded by Eusebius (Eccl. Hist.,Book VIII, ch.3, called The Martyrs of Palestine).