Cristóbal de Aresti Martínez de Aguilar

Cristóbal de Aresti Martínez de Aguilar, O.S.B. (1578–1641) was a Catholic prelate who served as Bishop of Buenos Aires (1635–1641) and Bishop of Paraguay (1629–1635).

Biography Cristóbal de Aresti Martínez de Aguilar was born in Valladolid, Spain in 1578 and ordained a priest in the Order of Saint Benedict on 10 October 1585. On 12 February 1629, he was appointed during the papacy of Pope Urban VIII as Bishop of Paraguay. On 3 December 1635, he was appointed during the papacy of Pope Urban VIII as Bishop of Buenos Aires. He served as Bishop of Buenos Aires until his death in 1641.