From the Prologue of Ochrid
Dada was a Persian nobleman and kinsman of King Shapur, and Gobdelas was a son of the same king. When Saint Dada publicly confessed his faith in Christ, King Shapur ordered that he be subjected to cruel tortures. But during those tortures Dada worked great miracles in the name of Christ, which so powerfully moved the king's son Gobdelas that he too believed in Christ. The pagan king did not spare even his own son, but subjected him also to grievous torments. Both Dada and Gobdelas glorified God by their steadfast endurance and many miracles, and amid their tortures surrendered their souls to God. They suffered in the fourth century. Together with them there also suffered — for they too believed in Christ — Gobdelas's sister Casdoa, and the chief pagan priest Gargal.
