 On 16 July 1646, he was appointed during the papacy of Pope Innocent X as Bishop of Lugo.On 14 October 1646, he was consecrated bishop by Giulio Rospigliosi, Titular Archbishop of "Tarsus", with Miguel Avellán, Titular Bishop of "Siriensis", and Timoteo Pérez Vargas, Titular Bishop of "Lystra", serving as co-consecrators.On 10 January 1650, he was appointed during the papacy of Pope Innocent X as Bishop of León.