Rubuta ci gaba don wannan sakin layi - An haifi Luigi Centoz a ranar 2 ga Afrilu 1883 a Saint-Pierre, kwarin Aosta, Italiya. An naɗa shi firist a ranar 9 ga Yuni, 1906. A shekara ta 1909 ya shiga ma'aikatan Sakatariyar Gwamnatin Vatican, inda ya yi aiki kai tsaye ga Sakataren Gwamnatin Cardinal Rafael Merry del Val. A ranar 6 ga Janairu, 1921, an sanya shi zuwa nunciatures zuwa Jamus da Bavaria (kuma daga 1925 zuwa Prussia), yana aiki ga Nuncio Eugenio Pacelli, daga baya Paparoma Pius XII. Ya halarci taron na Fabrairu 1922
, a matsayin mataimaki ga Cardinal Merry del Val.