Family and Faith
Bassa lived in Macedonian Edessa and was married to a pagan priest. Having been raised in the Christian faith from childhood, she taught that faith to her three sons, Theognis, Agapius and Pistus, within a household otherwise devoted to idolatry.
When the persecution under the emperor Maximian Galerius broke out, it was Bassa's own husband who betrayed his family, denouncing his wife and children to the civil authorities for their refusal to sacrifice to the idols.
The Martyrdom of the Sons
In spite of threats, the three boys refused to offer sacrifice to the idols, and each was tortured and put to death in turn. The eldest, Theognis, was raked with iron claws and then beheaded.
The young Agapius had the skin flayed from his head to his chest, yet the accounts record that he did not utter a sound under the torture. The youngest, Pistus, was tortured and beheaded just as his brothers had been.
The Sufferings of Bassa
Bassa herself was thrown into prison and starved, but the synaxarion relates that an angel strengthened her with heavenly food. She was then subjected to various tortures and is said to have remained unharmed by fire, water and wild beasts.
When she was brought to a pagan temple, she shattered the statue of Zeus. According to the tradition, after she was cast into the sea a ship sailed up and three radiant men drew her out of the water.
She came at last to the island of Alona, near Cyzicus in the Propontis (the Sea of Marmora), where she was beaten with rods and beheaded.
Veneration
Bassa came to be venerated widely in the region around the Sea of Marmora and Constantinople. By the year 450 a church had already been dedicated in honor of the holy martyr Bassa at Chalcedon, a testimony to the early spread of her commemoration.