Pius XI aimed to end the long breach between the papacy and the Italian government and to gain recognition once more of the sovereign independence of the Holy See. Most of the Papal States had been seized by the forces of King
Victor Emmanuel II of Italy (1861–1878) in 1860 at the
foundation of the modern unified Italian state, and the rest, including Rome, in 1870. The Papacy and the Italian Government had been at loggerheads ever since: the Popes had refused to recognise the Italian state's seizure of the Papal States, instead withdrawing to become
prisoners in the Vatican, and the Italian government's policies had always been
anti-clerical. Now Pius XI thought a compromise would be the best solution.
To bolster his own new regime,
Benito Mussolini was also eager for an agreement. After years of negotiation, in 1929, the Pope supervised the signing of the
Lateran Treaties with the Italian government. According to the terms of the first treaty,
Vatican City was given sovereignty as an independent nation in return for the Vatican relinquishing its claim to the former territories of the Papal States. Pius XI thus became a head of state (albeit the smallest state in the world), the first Pope who could be termed as such since the Papal States fell after the unification of Italy in the 19th century. The Concordat of 1929 made Catholicism the sole religion of the state (although other religions were tolerated), paid salaries to priests and bishops, recognized church marriages (previously couples had to have a civil ceremony), and brought religious instruction into the public schools. In turn the bishops swore allegiance to the Italian state, which had a veto power over their selection.
[24] The Church was not officially obligated its support the Fascist regime; the strong differences remained but the seething hostility ended. The Church especially endorsed foreign policies such as support for the anti-Communist side in the Spanish Civil War, and support for the conquest of Ethiopia. Friction continued over the Catholic Action youth network, which Mussolini wanted to merge into his Fascist youth group.
[25]
A third agreement paid the Vatican 1750 million lira (about $100 million) for the seizures of church property since 1860. Pius XI used invested the money in the stock markets and real estate. To manage these investments, the Pope appointed the lay-person
Bernadino Nogara, who through shrewd investing in stocks, gold, and futures markets, significantly increased the Catholic Church's financial holdings. The income largely paid for the upkeep of the expensive-to-maintain stock of historic buildings in the Vatican which previously had been maintained through funds raised from the
Papal States up until 1870.
The Vatican's relationship with Mussolini's government deteriorated drastically after 1930 as Mussolini's totalitarian ambitions began to impinge more and more on the autonomy of the Church. For example, the Fascits tried to absorb the Church's youth groups. In response Pius issued the encyclical
Non Abbiamo Bisogno ("We Have No Need)") in 1931. It denounced the regime's persecution of the church in Italy and condemned "pagan worship of the State."
[26]
Mussolini urged Pius to excommunicate Hitler as he thought it would render him less powerful in Catholic Austria and reduce the danger to Italy and wider Europe. The Vatican refused to comply and thereafter Mussolini began to work with Hitler, adopting his anti-semitic and race theories.
[27]