Whakakihia te rerenga e whai ake nei: I whanau a Luigi Centoz i te 2 o Aperira 1883 i Saint-Pierre, Aosta Valley, Itari. I whakatapua ia hei tohunga i te 9 o Pipiri 1906. I te tau 1909 ka uru atu ia ki nga kaimahi o te Holy See's Secretariat of State, i reira i mahi tika ai ia mo te Kaituku o te Kaituku o te Kaituku Rafael Merry del Val. I te 6 o Hanuere 1921, i tukuna ia ki nga nunciatures ki Tiamana me Bavaria (mai i te 1925 ki Prussia), e mahi ana mo te Nuncio Eugenio Pacelli, i muri mai ko Pope Pius XII. I whai wāhi ia ki te
i te hui o Hui-tanguru 1922, hei kaiawhina ki a Cardinal Merry del Val.