St. Theodore of Amasea
Martyr and Patron Saint of Crusaders and Venice
Early fourth century
The earliest source for any information about St. Theodore comes from Gregory of Nyssa who preached in honor of St. Theodore in his sanctuary in the late fourth century.
Gregory proclaimed that St. Theodore could influence the lives of his hearers and specifically mentioned that he could intervene in battles. Thereafter adopted by Crusaders as their patron, this became a particularly important attribute of St. Theodore.