Paus Benediktus XVI
Paus terakhir yang bergelar nama kepausan Benediktus, Paus Benediktus XV, bertugas sebagai dari 1914 hingga 1922 pada masa Perang Dunia I.
Paus Benediktus XV
Ajaran Apostoliknya termasuk Ubi primum (8 September 1914), Allorché fummo chiamati (28 July 1915) and Dès le début (1 August 1917). The Papal bulls of Benedict XV include Incruentum Altaris (10 August 1915), Providentissima Mater (27 May 1917), Sedis huius (14 May 1919), and Divina disponente (16 May 1920). Benedict issued nine Briefs during his pontificate: Divinum praeceptum (December 1915), Romanorum Pontificum (February 1916), Cum Catholicae Ecclesiae (April 1916), Cum Biblia Sacra (August 1916), Cum Centesimus (October 1916), Centesimo Hodie (October 1916), Quod Ioannes (April 1917), In Africam quisnam (June 1920), and Quod nobis in condendo (September 1920).