Roman Catholic Church
The longest-reigning pope in the history of the Roman Catholic Church is Pope Pius IX, who served from 1846 to 1878—an extraordinary pontificate lasting over 31 years. His tenure spanned one of the most turbulent periods in European history, marked by revolution, nationalism, and the decline of traditional monarchies. Early Life and Background Born Giovanni Maria … Read More “Who Was the Longest-Reigning Pope?” »