Pope Pius XI (Italian: Pio XI; born Ambrogio Damiano Achille Ratti, Italian: [amˈbrɔ:dʒo daˈmja:no aˈkille ˈratti]; 31 May 1857 – 10 February 1939) was head of the Catholic Church from 6 February 1922 until his death in February 1939. He was also the first sovereign of the Vatican City State upon its creation on 11 February 1929. .
https://en.wikipedia.org/wiki/Pope_Pius_XI
Pope Pius XI (Italian: Pio XI; born Ambrogio Damiano Achille Ratti, Italian: [amˈbrɔ:dʒo daˈmja:no aˈkille ˈratti]; 31 May 1857 – 10 February 1939) was head of the Catholic Church from 6 February 1922 until his death in February 1939. He was also the first sovereign of the Vatican City State upon its creation on 11 February 1929. .
