Eulogius (d. 859), a priest living under Islamic rule in C rdoba, is our principal source for the so-called "C rdoban martyrs' movement" (850-859), in the course of which forty-eight Christians were decapitated for religious offenses against Islam. The majority of the victims were condemned for blasphemy, having deliberately flouted proscriptions against public expressions of disrespect for Muhammad. Interestingly enough, the C rdoban Christian community...