[1] Francisco Diego Alarcón y Covarrubias was born in Valladolid, Spain on 29 March 1589.
[2][3] On 11 Apr 1639, he was appointed during the papacy of Pope Urban VIII as Bishop of Ciudad Rodrigo.
[2] On 18 October 1645, he was appointed during the papacy of Pope Innocent X as Bishop of Salamanca.
[2] On 1 March 1648, he was selected by the King of Spain and confirmed by Pope Innocent X on 6 Jul 1648 as Bishop of Pamplona.
[2] On 24 September 1657, he was appointed during the papacy of Pope Alexander VII as Bishop of Córdoba.