Predominant Religion in Portugal, Spain, Italy, and Hungary

All four nations share a historic majority faith:

• Portugal: Roman Catholic (~80% nominal)
• Spain: Roman Catholic (~60% nominal; secularizing rapidly)
• Italy: Roman Catholic (~74% nominal; Vatican City enclaved in Rome)
• Hungary: Roman Catholic (~54% census; Calvinist/Lutheran minorities significant)

Context: "Nominal" = baptized/cultural identification. Active practice lower (15–25% weekly attendance). All four have constitutional religious freedom; Catholic Church retains cultural, educational, and political influence despite secularization.