Mamerto Esquiú Medina (11 May 1826 - 10 January 1883) - born Mamerto de la Ascensión Esquiú - was an Argentine Roman Catholic professed member from the Order of Friars Minor and the Bishop of Córdoba from 1880 until his death.Esquiú's cause for sainthood commenced under Pope Paul VI on 13 April 1978 and he became titled as a Servant of God while the confirmation of his heroic virtue allowed for Pope Benedict XVI to name him as Venerable on 16 December 2006.