The Election of Cardinal Siri, 1958 A.D.

[allodial]

The Pacelli's were fiercely loyal to the injured merit of the papacy. From 1848, the Popes had progressively lost to the emerging nation-state of Italy their dominions, which had formed, since time immemorial, the midriff of the Italian peninsula. Six years before Eugenio's birth, the city of Rome itself had been seized, leaving the papacy in crisis.

How could the Popes regard themselves as independent now that they were mere citizens of an upstart kingdom? Eugenio's grandfather and father believed passionately that the Popes could once again exert a powerful unifying authority over the church by the application of ecclesiastical and international law.

In 1870, at a gathering in Rome of a preponderance of the world's bishops, known as the First Vatican Council, the Pope was dogmatically declared infallible in matters of faith and morals. He was also declared the unchallenged primate of the faithful.

The Pope may have lost his temporal dominion, but spiritually he was solely in charge of his universal church.

During the first two decades of this century, papal primacy and infallibility began to creep even beyond the ample boundaries set by the First Vatican Council. A powerful legal instrument transformed the 1870 primacy dogma into an unprecedented principle of papal power.

Eugenio Pacelli, by then a brilliant young Vatican lawyer, had a major part in the drafting of that instrument, which was known as the Code of Canon Law....

The Second Vatican Council was called by John XXIII who succeeded Pacelli, in 1958, precisely to reject Pacelli's monolith in preference for a collegial, decentralized, human, Christian community, the Holy Spirit, and love. The guiding metaphor of the church of the future was of a "pilgrim people of God." (source)

Who knows how the above might fit into the puzzle. It definitely appoints to a kind of 'schism' or polarization in that camp.