Most of what we know about this saint comes from the poet Prudentius. His Acts have been rather freely colored by the imagination of their compiler. But St. Augustine, in one of his sermons on St. Vincent, speaks of having the Acts of his martyrdom before him. We are at least sure of his name, his being a deacon, the place of his death and burial.
According to the story we have (and as with some of the other early martyrs the unusual devotion he inspired must have had a basis in a very heroic life), Vincent was ordained deacon by his friend St. Valerius of Saragossa in Spain. The Roman emperors had published their edicts against the clergy in 303, and the following year against the laity. Vincent and his bishop were imprisoned in Valencia. Hunger and torture failed to break them. Like the youths in the fiery furnace (Book of Daniel, chapter three), they seemed to thrive on suffering.
Valerius was sent into exile, and Dacian now turned the full force of his fury on Vincent. Tortures that sound like those of World War II were tried. But their main effect was the progressive disintegration of Dacian himself. He had the torturers beaten because they failed.
Finally he suggested a compromise: Would Vincent at least give up the sacred books to be burned according to the emperors edict? He would not. Torture on the gridiron continued, the prisoner remaining courageous, the torturer losing control of himself. Vincent was thrown into a filthy prison celland converted the jailer. Dacian wept with rage, but strangely enough, ordered the prisoner to be given some rest.
Friends among the faithful came to visit him, but he was to have no earthly rest. When they finally settled him on a comfortable bed, he went to his eternal rest.