The Martyr Lupus lived in the late Third Century – early Fourth Century, and was a faithful servant of the holy Great Martyr Demetrius of Soluneia (Thessalonika, Commemorated on  26 October). 

Being present at the death of his master, he soaked his own clothing with his blood and took a ring from his hand. With this clothing, and likewise with the ring and the name of the Great Martyr Demetrius, Saint Lupus worked at Soluneia many miracles. He destroyed pagan idols, for which he was subjected to persecution by the pagans, but by the power of God he was preserved unharmed. Saint Lupus voluntarily delivered himself over into the hands of the torturers and by order of the emperor Maximian Galerius he was beheaded by the sword (+ post 306).