Eulogius of Córdoba

Holy Hieromartyr Eulogius of Córdoba was a prominent priest at Córdoba in Spain in the time of the emirs Abd ar-⁠Rahman II and Muhammad I, when the persecution by the Moors was at its height. He was outstanding for his courage and learning, encouraged the believers in their sufferings, and wrote the "Memorial of the Saints" for their benefit. He suffered martyrdom for protecting Saint Leocritia, a young girl converted from Islam, and was put to death on 11 March 859. He is venerated as a saint of the undivided Church and is commemorated on 11 March (new calendar).