 The four dioceses were to be formed by splitting the current Diocese of Chile into the new dioceses of Concepción, Santiago, Temuco, and Valparaíso.The intended first bishops of the four dioceses were Tito Zavala (then the diocesan bishop), Abelino Manuel Apeleo (then the auxiliary bishop), and two new bishops who were consecrated in 2016 as additional auxiliaries, namely Alfred Cooper and Nelson Ojeda.The split into the four new dioceses took place in the early part of 2018, and the new province was formally constituted on 4 November 2018 by Archbishop Justin Welby and Presiding Bishop Gregory Venables.