Saints Victor and Sosthenes (Σωσθένης) are mentioned in the Life of the Holy Great Martyr Euphēmia (Ευφημία). The Proconsul Priscus ordered the soldiers Victor and Sosthenes to throw the Saint into a red-hot furnace. In the flames, however, they saw angels who prevented them from touching the Saint. When they refused to carry out the order, they were placed in shackles. Other soldiers, who threw Saint Euphēmia into the fire, were burnt by the flames escaping from the furnace, but inside the furnace, the martyr remained unharmed.
The Proconsul tried to make Victor and Sosthenes bow down to the idols, but they replied that they had come to know the true God. As they were led to the wild beasts, they begged the Lord to forgive the sins they had committed in their pagan delusion. Then a Divine voice came from Heaven, calling them to their rest, and they surrendered their souls to the Lord. The animals did not touch their bodies. Later, the two martyrs were buried secretly by some Christians.
In some calendars, such as the Roman Martyrology, the Saints' day of commemoration is listed as September 10.