From the Martyrologium:
At Nicomedia, the holy martyrs Dorotheus and Gorgonius. They stood high at the Court of the Emperor Diocletian. They denounced in his presence the persecution which he was raising against the Christians, wherefore he caused them to be hung up, and their whole bodies torn with lashes, then to have the skin taken off their bowels, to be covered with vinegar and salt, and cooked upon a gridiron, and at the last strangled. In after times the body of the blessed Gorgonius was brought to Rome, and laid first upon the Latin Way, and afterwards in the Basilica of St Peter.