Their story
After the revolt of Barchokebas, the emperor Adrian rebuilt Jerusalem as Aelia Capitolina and forbade Jews to come near it. Only Gentile Christians could live there.
Mark was the first bishop of Jerusalem chosen from the Gentiles. Butler calls him a learned and holy man who, after twenty years as bishop, is said to have died a martyr. Butler gives 156; Baring-Gould, the text on this page, gives about 150. The sources differ.
