St. Eulogius of Cordoba was a priest and headed an ecclesiastical school. During Islamic persecutions, he comforted Christian martyrs and their survivors. While imprisoned for his faith, he wrote “Exhortation to Martyrdom.” This was not the only time he was imprisoned; he was arrested many times for his faith. He later died for his faith in Cordoba, Spain, in 859. St. Eulogius is patron saint of carpenters and coppersmiths.