Isaac of Córdoba

Saint Isaac of Córdoba was born at Córdoba in Spain and became skilled in Arabic, serving as a notary under the Moorish government. He gave up his post to become a monk at Tábanos, a few miles from the city.

During a public debate at Córdoba he confessed the Christian faith and denounced the teaching of Muhammad, and for this he was put to death as a martyr. The year of his death is given as 851 or 852. He is one of the Martyrs of Córdoba, Christians executed under the Muslim rule of al-⁠Andalus in the 850s.

He is commemorated on 3 June as a saint of the West before the Great Schism (a saint of the undivided Church), by the New Calendar.