Ambrogio Damiano Achille Ratti

Ambrogio Damiano Achille Ratti, known as Pope Pius XI, was the Pope from 1922 until his death in 1939. His papacy was notable for establishing the Vatican City as a sovereign state through the Lateran Treaty and for addressing the rise of fascism in Italy. Pius XI emphasized the importance of the Church's moral authority and sought to maintain its influence during turbulent times, including the Great Depression and World War II.